极简纯白影棚的成年模特蹲姿肖像

制作一张 4:5 竖幅的高端影棚时尚肖像：一位明确成年的、身份不特定的女性模特在纯白无缝背景与光滑影棚地面上低身蹲坐，双膝弯曲、脚跟接触地面，一只手肘自然搭在膝盖上，手掌轻托下巴，平静自信地看向镜头。她穿挺括的白色长袖纽扣衬衫与合体但不紧身的高腰深蓝长裤，搭配简洁的中性平底鞋或低跟鞋；服装端庄，不强调身体。深棕色长波浪发自然垂落，妆容简约。使用柔和漫射影棚光、低对比度、干净白色背景和自然软阴影，35mm 等效镜头、浅景深、全身构图、写实高细节。保持解剖结构自然、四肢完整、面部不模仿任何真实人物；不要夸张比例、品牌 logo、文字或露骨内容。

【English Prompt】
Create a 4:5 vertical high-end studio fashion portrait of a clearly adult, non-identifiable woman model crouching calmly on a smooth white studio floor against a seamless white backdrop. Her knees are bent with heels grounded, one elbow rests naturally on a knee, and one hand gently supports her chin as she looks toward the camera with a calm confident expression. Dress her in a crisp white long-sleeve button-up shirt with tailored high-waisted deep-blue trousers and simple neutral flats or low heels; the styling is modest and never body-emphasizing. Give her natural long dark-brown waves and minimal makeup. Use soft diffused studio light, low contrast, clean white surroundings, natural soft shadows, a 35mm-equivalent lens, shallow depth of field, and a full-body realistic high-detail frame. Keep anatomy natural and complete, do not imitate any real person, and include no exaggerated proportions, brand logos, text, or explicit content.

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