逼真的浪漫情侣肖像，同时保留身份特征

```json
{
  "reference_faces": {
    "female": {
      "use_reference_image": true,
      "face_consistency": "high",
      "preserve_identity": true,
      "notes": "与提供的参考图像保持相同的面部结构、眼睛、鼻子、嘴唇、肤色和整体相似度"
    },
    "male": {
      "use_reference_image": true,
      "face_consistency": "high",
      "preserve_identity": true,
      "notes": "与提供的参考图像保持相同的面部结构、胡须样式、下颌线、笑容和肤色"
    }
  },
  "subjects": {
    "female": {
      "age": "青年",
      "expression": "自然愉快的笑容",
      "hair": {
        "color": "深棕色",
        "style": "散开或柔和造型"
      },
      "pose": "放松，略微倾向伴侣",
      "vibe": "温暖、深情、真诚"
    },
    "male": {
      "age": "青年",
      "expression": "真诚的笑容",
      "hair": {
        "color": "深棕色",
        "style": "短发，自然"
      },
      "facial_hair": "浅色胡须或胡茬",
      "pose": "手臂环绕伴侣或紧密站立",
      "vibe": "保护欲强、放松、深情"
    }
  },
  "interaction": {
    "relationship": "浪漫情侣",
    "body_language": "亲密、舒适、自然的亲昵",
    "hands": "牵手或轻柔拥抱",
    "head_position": "头部略微倾向对方"
  },
  "scene": {
    "location": "浪漫的户外或室内场景",
    "examples": [
      "酒店房间镜子自拍",
      "户外夜灯",
      "旅行目的地",
      "舒适的城市夜晚"
    ],
    "background_style": "柔和模糊，富有美感",
    "time_of_day": "傍晚或黄金时段"
  },
  "lighting": {
    "type": "柔和自然光",
    "temperature": "暖色调",
    "effect": "平滑肤色，浪漫光泽"
  },
  "camera": {
    "shot_type": "中景",
    "angle": "与视线齐平",
    "focus": "面部清晰，背景略微模糊",
    "style": "生活方式摄影"
  },
  "photography_style": {
    "mood": "浪漫、真诚、亲密",
    "quality": "高分辨率，逼真",
    "color_grading": "柔和暖色调"
  },
  "constraints": {
    "no_face_changes": true,
    "no_identity_mix": true,
    "no_cartoon_style": true,
    "no_exaggeration": true
  },
  "output": {
    "realism": "照片级真实感",
    "detail_level": "高",
    "aspect_ratio": "4:5"
  }
}
```