浪漫街头编辑肖像（图像到图像）

```json
{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "romantic_street_editorial_identity_lock",
      "language": "zh-Hans",
      "priority": "highest",
      "version": "v1.0_AUTUMN_RED_SWEATER_FLOWER_BOUQUET_NO_TEXT"
    },
    "input": {
      "mode": "image_to_image",
      "reference_image_usage": "very_high",
      "preserve_identity": true,
      "preserve_facial_features": true,
      "preserve_pose": true,
      "preserve_body_proportions": true,
      "preserve_hand_structure": true,
      "notes": "使用上传的图片作为主要锚点。保持完全相同的站立姿势、头部朝向、手触碰头发的动作以及花束的摆放位置。保留红色针织毛衣、白色分层蕾丝短裙、透明丝袜和黑色单肩包。保留用暖色调纸包裹的红花和白百合花束。背景保持建筑石材立面和装饰性金属门细节。增强真实感：自然的皮肤纹理、细致的针织面料、蕾丝透明度准确、逼真的花朵纹理、平衡的日光阴影。无文字，无标志，无水印。"
    },
    "output_settings": {
      "aspect_ratio": "4:5",
      "orientation": "portrait",
      "resolution_target": "ultra_high_res",
      "num_images": 1,
      "render_style": "cinematic_natural_editorial",
      "sharpness": "natural_crisp",
      "grain": "subtle_film",
      "color_grade": "soft_warm_daylight",
      "dynamic_range": "balanced_highlights"
    },
    "scene": {
      "environment": "优雅的城市街道，带有石材建筑",
      "lighting_style": "柔和的自然日光，带有轻微的阴影对比",
      "background_elements": "纹理石墙、华丽的深色金属门、铺砖人行道"
    },
    "subject": {
      "count": 1,
      "description": "一名成年女性站在户外，手持花束",
      "expression": "柔和沉思的侧视",
      "hair": "深色波浪发，自然蓬松",
      "makeup": "自然魅力妆容，带有柔和腮红和清晰睫毛",
      "wardrobe": "红色针织毛衣、白色分层蕾丝迷你裙、透明丝袜",
      "accessories": "黑色单肩包"
    },
    "camera": {
      "shot_type": "中景全身肖像",
      "angle": "与视线齐平，略带自然透视",
      "focus": "主体和花束清晰，背景轻微虚化",
      "lens_look": "85mm 人像镜头美学",
      "depth_of_field": "适度浅景深",
      "exposure": "平衡的日光曝光"
    },
    "lighting": {
      "key_light": "侧面自然日光",
      "fill_light": "建筑立面柔和的环境反光",
      "shadow_style": "自然柔和的阴影线条",
      "skin_rendering": "逼真的纹理，不过度平滑"
    },
    "composition_rules": [
      "保持花束清晰可见且细节丰富",
      "保留主体后方的建筑对称性",
      "保持自然比例"
    ]
  }
}
```