电影级艺术情侣肖像，带参考图像锁定

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_cinematic_romantic_fine_art_editorial",
      "version": "v1.1_GALLERY_FRAME_COUPLE_LIFT_EMBRACE_YELLOW_HALTER_SATIN",
      "priority": "highest"
    },

    "references": {
      "reference_image_1": {
        "source": "UPLOAD_REFERENCE_IMAGE",
        "purpose": "POSE_COMPOSITION_LIGHTING_REFERENCE",
        "strict_lock": true,
        "match_reference_priority": "MAX",
        "preserve_pose_geometry": true,
        "preserve_framing_and_cropping": true,
        "preserve_background_structure": true,
        "preserve_mood_and_lighting": true,
        "no_style_drift": true
      },
      "reference_image_2": {
        "source": "UPLOAD_FACE_REFERENCE (OPTIONAL)",
        "purpose": "FACE_IDENTITY_LOCK_FEMALE",
        "strict_lock": true,
        "face_similarity_priority": "MAX",
        "no_identity_blending": true,
        "no_beautify": true,
        "no_age_shift": true,
        "preserve_skin_texture": true,
        "preserve_facial_proportions": true
      },
      "reference_image_3": {
        "source": "UPLOAD_FACE_REFERENCE (OPTIONAL)",
        "purpose": "FACE_IDENTITY_LOCK_MALE",
        "strict_lock": true,
        "face_similarity_priority": "MAX",
        "no_identity_blending": true,
        "no_beautify": true,
        "no_age_shift": true,
        "preserve_skin_texture": true,
        "preserve_facial_proportions": true
      }
    },

    "creative_direction": {
      "concept": "A cinematic, museum-gallery romance scene: a couple in an intimate lift embrace, posed in front of a large ornate framed classical landscape painting. High-end editorial, dramatic but elegant. The woman wears a striking {argument name="dress color" default="yellow"} satin halter-neck gown tied at the back of the neck, with matching yellow high heels.",
      "mood": "intimate, luxurious, timeless, fine-art cinematic",
      "style_keywords": "old-master atmosphere, museum lighting, romantic tension, film still"
    },

    "scene": {
      "location": "museum/gallery interior",
      "background": {
        "hero_object": "a large ornate gold frame containing a classical landscape painting",
        "wall": "warm brown gallery wall",
        "lower_wall": "white wainscoting / panel molding",
        "floor": "dark warm wood"
      },
      "composition": "full-body vertical frame, couple centered, painting fills most of the background"
    },

    "subjects": {
      "male": {
        "wardrobe": "black suit, black trousers, black shoes",
        "pose": "standing, lifting the woman at her waist/thigh, stable posture, looking up at her face"
      },
      "female": {
        "wardrobe": {
          "dress": "yellow silk satin halter-neck gown, neck-tie strap (tied behind the neck), fitted bodice, elegant drape, subtle sheen, high-fashion finish",
          "fabric_notes": "realistic satin highlights, soft folds, premium couture construction"
    }