自然阳光特写肖像，真实皮肤质感（匠心风格）

{
"photo_type": "自然阳光特写肖像（原始真实捕捉）",

"subject": {
"face": {
"description": "使用上传的参考图片，保持身份完全一致，不要重塑或平滑"
},

"pose_description": "躺着或微斜躺，头部倾斜，一只手托着下巴",

"expression": "中性柔和表情，嘴唇放松，自然地看向侧面"
},

"lighting": {
"type": "直射自然阳光",

"setup": [
"阳光从窗户侧面射入",
"部分面部照明",
"硬光边缘，柔和衰减"
],

"effects": [
"脸颊和鼻梁上有明亮高光",
"另一侧有强烈自然阴影",
"面部曝光不均匀",
"真实阳光对比度"
],

"color_temperature": "自然日光 5500K"
},

"skin_realism": {
"details": [
"可见毛孔",
"微小雀斑或印记",
"自然油光",
"肤色不均",
"无平滑或模糊"
]
},

"hair": {
"details": [
"可见自然发丝",
"轻微毛躁",
"未完美整理",
"光线捕捉到单根头发"
]
},

"clothing": {
"details": [
"白色蕾丝上衣",
"可见精细面料纹理",
"细小褶皱和阴影"
]
},

"accessories": {
"details": [
"细项链",
"小吊坠",
"微妙反光"
]
},

"camera": {
"type": "智能手机后置摄像头",

"lens": "26mm",

"settings": {
"aperture": "f/1.8",
"iso": "ISO 50-150",
"shutter_speed": "1/800s"
},

"focus": "眼睛锐利，轻微景深衰减",

"sensor_behavior": [
"阴影处有轻微颗粒感",
"亮部高光溢出",
"轻微噪点"
]
},

"lens_effects": {
"details": [
"高光处轻微过曝",
"自然对比度",
"无人工模糊",
"真实景深衰减"
]
},

"background": {
"details": [
"白色织物或床上用品",
"柔软褶皱",
"浅色阴影",
"不完全平滑"
]
},

"color_grading": {
"style": "原始自然",

"rules": [
"无大量后期编辑",
"轻微暖色调",
"自然肤色",
"真实相机色彩"
]
},

"imperfections": [
"光线不均匀",
"皮肤纹理",
"轻微颗粒感",
"高光烧毁"
],

"composition": {
"camera_angle": "特写微俯视角度",
"framing": "面部紧密裁剪",
"depth": "面部清晰，边缘柔和"
},

"resolution_and_aspect_ratio": "4K, 4:5",

"vibe": "自然美，阳光，毫不费力的真实感",

"strict_rules": {
"must_have": [
"真实阳光对比度",
"可见皮肤纹理",
"无平滑",
"参考面部不变"
],

"avoid": [
"studio "
]
}
}。迭代思路：同一参数下生成 3 次，挑出色彩、姿态最契合品牌调性的版本。