顶置聚光灯下的极简剪影

{
  "prompt_id": "silhouette_dark_001_signature",
  "description": "黑暗中极简戏剧性人物剪影与签名",
  "scene": {
    "environment": "纯黑虚空背景",
    "lighting": {
      "type": "单顶置聚光灯",
      "position": "主体正上方",
      "intensity": "柔和聚焦的光束",
      "effect": "带有柔和径向衰减的圆形光斑"
    }
  },
  "subject": {
    "type": "人物剪影",
    "pose": "居中站立，正对镜头",
    "details": "无面部特征的纯黑剪影",
    "shadow": {
      "style": "硬边长投影",
      "direction": "延伸至左下方",
      "sharpness": "清晰高对比度"
    }
  },
  "composition": {
    "framing": "具有大面积留白的极广角构图",
    "mood": "神秘、孤独、电影感",
    "aspect_ratio": "4:5"
  },
  "signature": {
    "text": "[Vivek HY]",
    "position": "右下角",
    "style": "极简利落的无衬线字体，白色",
    "opacity": "70%"
  },
  "post_processing": {
    "contrast": "极高",
    "glow": "微妙的径向光晕",
    "grain": "细腻的微胶片颗粒感"
  }
}