超奢华珠宝广告拼贴画（2x2 网格）

{
"generation_request": {
"meta_data": {
"task_type": "ultra_luxury_jewelry_octagon_campaign_2x2",
"language": "en",
"priority": "highest",
"version": "v3.0_EDITORIAL_COLOR_HARMONY_SERIES"
},

"input": {
  "mode": "image_to_image",

  "reference_images": [
    "yellow_jewel_editorial_reference",
    "green_jewel_editorial_reference",
    "pink_jewel_editorial_reference",
    "blue_jewel_editorial_reference"
  ],

  "reference_strength": "very_high",
  "identity_lock": true,
  "face_similarity_priority": "maximum",
  "style_reference_priority": "maximum",

  "notes": "Generate a high-end luxury jewelry campaign collage inspired by top fashion house campaigns. The same female model identity appears across all panels but with different elegant hairstyles and couture styling. Maintain the octagon crystal frame composition and strong monochrome color worlds."
},

"output_settings": {
  "aspect_ratio": "4:5",
  "orientation": "portrait",
  "resolution_target": "ultra_high_res",

  "num_images": 1,

  "layout": {
    "type": "grid",
    "rows": 2,
    "cols": 2,
    "gutter": "thin",
    "outer_border": "none"
  },

  "render_style": "luxury_fashion_editorial",
  "sharpness": "editorial_crisp",
  "grain": "very_subtle_analog_film"
},

"scene": {
  "environment": "minimal luxury studio",
  "background_style": "smooth monochrome gradient backgrounds matched to jewelry tones",
  "frame_element": "transparent beveled crystal octagon frame",
  "composition": "model centered within octagon frame, elegant fashion portrait crop"
},

"panels": {

  "top_left": {
    "theme_color": "golden yellow",
    "color_palette": ["champagne gold", "warm yellow", "soft ivory"],
    "background": "luxury golden gradient",
    "wardrobe": "elegant yellow silk couture dress",
    "jewelry": "yellow diamond necklace, layered gold bracelets, sculptural gold rings",
    "hairstyle": "high sleek ponytail",
    "pose": "model lifting her ponytail with confident editorial pose"
  },

  "top_right": {
    "theme_color": "emerald green",
    "color_palette": ["emerald", "deep jade", "soft mint"],
    "background": "rich emerald gradient",
    "wardrobe": "emerald hooded couture bodysuit",
    "jewelry": "large emerald gemstone necklace and stacked emerald bracelets",
    "hairstyle": "modern sleek low bun",
    "pose": "model touching the hood edge elegantly"
  },

  "bottom_left": {
    "theme_color": "rose pink",
    "color_palette": ["rose quartz", "soft blush", "warm pink"],
    "background": "soft pink gradient",
    "wardrobe": "pink satin evening camisole",
    "jewelry": "pink sapphire necklace, delicate bracelets and rings",
    "hairstyle": "soft romantic waves",
    "pose": "model resting one hand on shoulder gracefully"
  },

  "bottom_right": {
    "theme_color": "sapphire blue",
    "color_palette": ["sapphire", "ice blue", "cool steel"],
    "background": "deep blue gradient",