"edit type": "creative composite layering",

{
  "edit_type": "创意_合成_分层",

  "source": {
    "_hint": "基本逻辑：角色（参考图1）叠加在背景图像（参考图2）之上。",
    "mode": "编辑",
    "reference_images": {
      "first": "前景_角色_人物",
      "second": "背景_风景_或_图案"
    },
    "preserve_from_first": {
      "same_person_or_group": true,
      "same_faces": true,
      "same_hairstyles": true,
      "same_outfits": true
    }
  },

  "identity": {
    "keep_identity_consistent": true,
    "expression": "对镜灿烂且吸引人的微笑"
  },

  "camera_effect": {
    "_hint": "高角度自拍风格，在手与脸之间营造深度感。",

...