diff --git a/studio/src/components/SceneBuilder/PromptHistory.tsx b/studio/src/components/SceneBuilder/PromptHistory.tsx
new file mode 100644
index 00000000..38af0069
--- /dev/null
+++ b/studio/src/components/SceneBuilder/PromptHistory.tsx
@@ -0,0 +1,203 @@
+import { ReactElement, useEffect, useRef, useState } from 'react';
+import styled from 'styled-components';
+import { theme } from '../../theme';
+
+// ─── Types ───────────────────────────────────────────────────────────────────
+
+export interface HistoryEntry {
+  promptCore: string;
+  outfitDescription: string;
+  background: string;
+  timestamp: string;
+}
+
+const HISTORY_KEY = 'imajin:prompt-history';
+const MAX_HISTORY = 20;
+
+// ─── Storage helpers ─────────────────────────────────────────────────────────
+
+export function usePromptHistory(): {
+  load: () => HistoryEntry[];
+  push: (entry: Omit<HistoryEntry, 'timestamp'>) => void;
+} {
+  function load(): HistoryEntry[] {
+    try {
+      return JSON.parse(localStorage.getItem(HISTORY_KEY) ?? '[]') as HistoryEntry[];
+    } catch {
+      return [];
+    }
+  }
+
+  function push(entry: Omit<HistoryEntry, 'timestamp'>): void {
+    const history = load();
+    const newEntry: HistoryEntry = { ...entry, timestamp: new Date().toISOString() };
+    const updated = [
+      newEntry,
+      ...history.filter((h) => h.promptCore !== entry.promptCore),
+    ].slice(0, MAX_HISTORY);
+    localStorage.setItem(HISTORY_KEY, JSON.stringify(updated));
+  }
+
+  return { load, push };
+}
+
+// ─── Relative time ───────────────────────────────────────────────────────────
+
+function relativeTime(iso: string): string {
+  try {
+    const diff = Date.now() - new Date(iso).getTime();
+    const minutes = Math.floor(diff / 60_000);
+    if (minutes < 1) return 'just now';
+    if (minutes < 60) return `${minutes}m ago`;
+    const hours = Math.floor(minutes / 60);
+    if (hours < 24) return `${hours}h ago`;
+    return `${Math.floor(hours / 24)}d ago`;
+  } catch {
+    return '';
+  }
+}
+
+// ─── Styled components ───────────────────────────────────────────────────────
+
+const Wrapper = styled.div`
+  position: relative;
+`;
+
+const HistoryBtn = styled.button`
+  background: none;
+  border: 1px solid ${theme.colors.border};
+  border-radius: ${theme.radius.sm};
+  color: ${theme.colors.textMuted};
+  cursor: pointer;
+  padding: 2px ${theme.spacing.xs};
+  font-size: ${theme.font.size.sm};
+  line-height: 1;
+  transition: ${theme.transition};
+
+  &:hover {
+    color: ${theme.colors.text};
+    border-color: ${theme.colors.borderHover};
+  }
+`;
+
+const Dropdown = styled.div`
+  position: absolute;
+  top: calc(100% + ${theme.spacing.xs});
+  right: 0;
+  z-index: 100;
+  background: ${theme.colors.bgPanel};
+  border: 1px solid ${theme.colors.border};
+  border-radius: ${theme.radius.md};
+  width: 280px;
+  max-height: 320px;
+  overflow-y: auto;
+  box-shadow: ${theme.shadow.elevated};
+
+  &::-webkit-scrollbar { width: 4px; }
+  &::-webkit-scrollbar-track { background: transparent; }
+  &::-webkit-scrollbar-thumb { background: ${theme.colors.border}; border-radius: 2px; }
+`;
+
+const EmptyMsg = styled.div`
+  padding: ${theme.spacing.lg};
+  font-size: ${theme.font.size.sm};
+  color: ${theme.colors.textDim};
+  text-align: center;
+`;
+
+const HistoryItem = styled.button`
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  gap: ${theme.spacing.sm};
+  width: 100%;
+  padding: ${theme.spacing.sm} ${theme.spacing.md};
+  background: none;
+  border: none;
+  border-bottom: 1px solid ${theme.colors.border};
+  color: ${theme.colors.text};
+  cursor: pointer;
+  text-align: left;
+  transition: ${theme.transition};
+
+  &:last-child { border-bottom: none; }
+
+  &:hover {
+    background: ${theme.colors.bgHover};
+  }
+`;
+
+const PromptPreview = styled.span`
+  font-size: ${theme.font.size.sm};
+  color: ${theme.colors.text};
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+  flex: 1;
+  min-width: 0;
+`;
+
+const TimeLabel = styled.span`
+  font-size: ${theme.font.size.xs};
+  color: ${theme.colors.textDim};
+  flex-shrink: 0;
+`;
+
+// ─── Props ───────────────────────────────────────────────────────────────────
+
+interface PromptHistoryProps {
+  onRestore: (entry: HistoryEntry) => void;
+}
+
+// ─── Component ───────────────────────────────────────────────────────────────
+
+export function PromptHistory({ onRestore }: PromptHistoryProps): ReactElement {
+  const [open, setOpen] = useState(false);
+  const { load } = usePromptHistory();
+  const wrapperRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    if (!open) return;
+
+    function handleClickOutside(e: MouseEvent): void {
+      if (wrapperRef.current && !wrapperRef.current.contains(e.target as Node)) {
+        setOpen(false);
+      }
+    }
+
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, [open]);
+
+  const entries = load();
+
+  return (
+    <Wrapper ref={wrapperRef}>
+      <HistoryBtn onClick={() => setOpen((v) => !v)} title="Prompt history">
+        ↺
+      </HistoryBtn>
+      {open && (
+        <Dropdown>
+          {entries.length === 0 ? (
+            <EmptyMsg>No history yet</EmptyMsg>
+          ) : (
+            entries.map((entry, i) => (
+              <HistoryItem
+                key={i}
+                onClick={() => {
+                  onRestore(entry);
+                  setOpen(false);
+                }}
+              >
+                <PromptPreview>
+                  {entry.promptCore.slice(0, 60) || '(empty prompt)'}
+                </PromptPreview>
+                <TimeLabel>{relativeTime(entry.timestamp)}</TimeLabel>
+              </HistoryItem>
+            ))
+          )}
+        </Dropdown>
+      )}
+    </Wrapper>
+  );
+}
diff --git a/studio/src/components/SceneBuilder/index.tsx b/studio/src/components/SceneBuilder/index.tsx
index 68c6bdaa..c39a14b6 100644
--- a/studio/src/components/SceneBuilder/index.tsx
+++ b/studio/src/components/SceneBuilder/index.tsx
@@ -4,6 +4,7 @@ import type { PoseDefinition } from '@lilith/imajin-config';
 import { theme } from '../../theme';
 import type { CameraAngle, MaturityRating, SceneState, ShotType } from '../../types';
 import { PoseGallery } from './PoseGallery';
+import { PromptHistory, type HistoryEntry } from './PromptHistory';
 
 const Container = styled.div`
   display: flex;
@@ -17,6 +18,12 @@ const Section = styled.div`
   gap: ${theme.spacing.md};
 `;
 
+const SectionHeader = styled.div`
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+`;
+
 const SectionLabel = styled.div`
   font-size: ${theme.font.size.xs};
   font-weight: ${theme.font.weight.semibold};
@@ -25,6 +32,29 @@ const SectionLabel = styled.div`
   color: ${theme.colors.textMuted};
 `;
 
+const SectionActions = styled.div`
+  display: flex;
+  align-items: center;
+  gap: ${theme.spacing.xs};
+`;
+
+const SmallBtn = styled.button`
+  background: none;
+  border: 1px solid ${theme.colors.border};
+  border-radius: ${theme.radius.sm};
+  color: ${theme.colors.textMuted};
+  cursor: pointer;
+  padding: 2px ${theme.spacing.xs};
+  font-size: ${theme.font.size.sm};
+  line-height: 1;
+  transition: ${theme.transition};
+
+  &:hover {
+    color: ${theme.colors.text};
+    border-color: ${theme.colors.borderHover};
+  }
+`;
+
 const Textarea = styled.textarea`
   width: 100%;
   padding: ${theme.spacing.md};
@@ -237,13 +267,45 @@ const BG_PRESETS = [
   'natural forest',
 ];
 
+const LIGHTING_OPTIONS: { value: string; label: string }[] = [
+  { value: 'studio', label: 'Studio' },
+  { value: 'natural', label: 'Natural' },
+  { value: 'golden', label: 'Golden Hour' },
+  { value: 'dramatic', label: 'Dramatic' },
+  { value: 'neon', label: 'Neon' },
+  { value: 'backlit', label: 'Backlit' },
+];
+
+const STYLE_OPTIONS: { value: string; label: string }[] = [
+  { value: 'cinematic', label: 'Cinematic' },
+  { value: 'editorial', label: 'Editorial' },
+  { value: 'intimate', label: 'Intimate' },
+  { value: 'fashion', label: 'Fashion' },
+  { value: 'candid', label: 'Candid' },
+  { value: 'portrait', label: 'Portrait' },
+];
+
+const RANDOM_EXPRESSION_MOODS = [
+  'playful smile',
+  'confident gaze',
+  'soft expression',
+  'mysterious look',
+  'joyful energy',
+  'serene calm',
+];
+
+// ─── Props ───────────────────────────────────────────────────────────────────
+
 interface SceneBuilderProps {
   scene: SceneState;
   maturityRating: MaturityRating;
   onChange: (scene: SceneState) => void;
+  onRestoreHistory: (promptCore: string, outfit: string, background: string) => void;
 }
 
-export function SceneBuilder({ scene, maturityRating, onChange }: SceneBuilderProps): ReactElement {
+// ─── Component ───────────────────────────────────────────────────────────────
+
+export function SceneBuilder({ scene, maturityRating, onChange, onRestoreHistory }: SceneBuilderProps): ReactElement {
   const fileInputRef = useRef<HTMLInputElement>(null);
 
   function update(patch: Partial<SceneState>): void {
@@ -276,10 +338,28 @@ export function SceneBuilder({ scene, maturityRating, onChange }: SceneBuilderPr
     e.target.value = '';
   }
 
+  function handleRandomize(): void {
+    const bg = BG_PRESETS[Math.floor(Math.random() * BG_PRESETS.length)];
+    const mood = RANDOM_EXPRESSION_MOODS[Math.floor(Math.random() * RANDOM_EXPRESSION_MOODS.length)];
+    update({ background: bg, expressionMood: mood });
+  }
+
+  function handleRestoreHistory(entry: HistoryEntry): void {
+    onRestoreHistory(entry.promptCore, entry.outfitDescription, entry.background);
+  }
+
   return (
     <Container>
       <Section>
-        <SectionLabel>Scene description</SectionLabel>
+        <SectionHeader>
+          <SectionLabel>Scene description</SectionLabel>
+          <SectionActions>
+            <SmallBtn onClick={handleRandomize} title="Randomize background and mood">
+              ⚄
+            </SmallBtn>
+            <PromptHistory onRestore={handleRestoreHistory} />
+          </SectionActions>
+        </SectionHeader>
         <Textarea
           placeholder={SCENE_SAMPLES[maturityRating]}
           value={scene.promptCore}
@@ -373,6 +453,36 @@ export function SceneBuilder({ scene, maturityRating, onChange }: SceneBuilderPr
         </TwoCol>
       </Section>
 
+      <Section>
+        <SectionLabel>Lighting</SectionLabel>
+        <ChipGrid>
+          {LIGHTING_OPTIONS.map(({ value, label }) => (
+            <Chip
+              key={value}
+              $active={scene.lighting === value}
+              onClick={() => update({ lighting: scene.lighting === value ? '' : value })}
+            >
+              {label}
+            </Chip>
+          ))}
+        </ChipGrid>
+      </Section>
+
+      <Section>
+        <SectionLabel>Style</SectionLabel>
+        <ChipGrid>
+          {STYLE_OPTIONS.map(({ value, label }) => (
+            <Chip
+              key={value}
+              $active={scene.stylePreset === value}
+              onClick={() => update({ stylePreset: scene.stylePreset === value ? '' : value })}
+            >
+              {label}
+            </Chip>
+          ))}
+        </ChipGrid>
+      </Section>
+
       <Section>
         <SectionLabel>Outfit</SectionLabel>
         <Input