透き通る水中での東アジア人成人女性のポートレート撮影

一幅清透、轻柔的水下人像摄影画面，3:4 竖幅，半身近景。一位东亚女性人物浸在明亮的蓝青色水中，头部完全位于水面下方，镜头也处于水下，取景上缘保留波动水面的底面、扭曲反射和零星闪亮气泡。人物的脸位于画面上半部中央，黑色长发在两侧展开，白色衣料占据下半部和画面右侧前景。

人物上身正面略带角度朝向镜头，面部接近正对镜头，头部轻微侧倾，头顶比下巴稍靠画面右侧。双眼自然放松地望向镜头，眼睑舒展而不刻意睁大，嘴角放松，双唇轻轻微张，呈安静、轻柔的神态。可见颈部线条纤细修长，领口露出少量锁骨及上胸；肩部外轮廓主要由浮起的衣料形成，手部被衣料及裁切隐藏，下肢位于画幅之外。

脸部呈柔和的椭圆轮廓，脸颊平缓过渡，下颌逐渐收窄；眼睛为自然大小、偏细长的杏仁形，眉毛颜色较淡、眉弓起伏小，鼻梁较细，鼻尖带圆润感。嘴唇为浅玫瑰粉色，上唇略薄于下唇，唇峰柔和。妆容清淡，眼线和睫毛不过分突出，皮肤呈浅亮色，保留与水下成像相容的自然细微纹理。
下巴保持自然圆钝和真实骨骼宽度，末端不得形成尖锐V形；下颌可以收窄，但必须是渐进、柔和、带弧度的收窄，不允许锥形脸、刀削脸、过尖下巴或医美式V-line。

黑色长发没有束起，头顶略微蓬松，发束受水中浮力影响向左右两侧及上方漂散，形成松散、弯曲、交错的线条；几缕细碎发丝经过额头，两侧发束延伸至画面边缘，保留深色内部层次和局部受光的细亮边缘。

人物穿白色轻薄、局部透光的荷叶边衣装，胸前为 V 形开口，领口围绕层叠褶边。画面右侧肩袖更靠前，呈蓬松浮起的形状，薄布表面带细密褶皱；更多白色衣料向右下方和下缘铺展，在水中形成宽大、柔软、互相遮叠的波浪轮廓。衣料的蓬松体积与肩臂本身的体积保持区别。

水面上方透入的亮光随波纹折射，在头顶发丝、水面和画面右侧肩袖上形成闪点及不规则的水波光斑，光纹以肩袖和衣料为主。面部保留鼻梁、脸颊的亮区，以及发际、颈侧和下颌附近的自然阴影。面部受光与场景环境一致，保留自然明暗过渡与阴影，不额外补光或单独提亮脸部。

背景保持蓝青色水体，只有少量细小气泡和柔化水纹。黑色头发、浅亮面部与白色衣料形成清楚的色块关系；颈部与衣料暗面带轻微青蓝色映染，唇部保留浅粉色。焦点落在眼睛和面部，邻近面部的发束自然可辨，远离焦点的头发、前景衣料和水体保持轻柔的边缘过渡，不将整幅画面均匀锐化。

输出目标：4K 分辨率，3072 × 4096，保持 3:4 竖幅和既定人物占比。
高质量输出要求：优先保证真实摄影细节与局部结构稳定。焦点内的眉眼、鼻唇边界、邻近发束和衣料褶边清楚但不过锐；皮肤微纹理细腻克制，不人为放大毛孔。保持水下折射、布料透光、自然光影过渡和连续轮廓，保留整体轻柔的成像效果。避免五官涂抹、蜡像皮肤、无层次的头发色块、锐化白边、伪HDR、额外噪点和虚构纹理；高光及焦外区域的细节按实际受光与清晰度自然减弱。

遵循上述画面要求，在画面右下角呈现且仅呈现一处小巧的手绘英文签名“lyshen”，全部小写，笔迹自然清晰，不遮挡主体。

A clear, delicate underwater portrait photograph, 3:4 vertical orientation, medium close-up. An East Asian female subject is submerged in bright blue-cyan water, her head fully underwater with the camera submerged as well. The upper frame captures the underside of the undulating water surface, distorted reflections, and sparse glistening air bubbles. The subject's face is centered in the upper half of the frame, with long black hair spreading to both sides, while white fabric fills the lower half and the right foreground.

The upper body is angled slightly toward the camera, her face nearly directly facing the lens, head tilted gently with the crown slightly further to the right than the chin. Eyes look naturally and relaxed toward the camera with soft eyelids, relaxed mouth, and slightly parted lips conveying a quiet, gentle demeanor. A slender, elegant neck is visible, revealing a touch of collarbone and upper chest at the neckline; the shoulder silhouette is mostly defined by floating fabric, hands hidden by fabric and crop, and lower limbs outside the frame.

Soft oval facial contour with gradual cheek transitions narrowing gently toward the jaw; naturally sized, slightly elongated almond eyes, faint eyebrows with subtle arches, slender nose bridge with a rounded tip. Light rose-pink lips, upper lip slightly thinner than lower, soft cupid's bow. Light makeup, understated eyeliner and lashes, fair skin preserving subtle micro-textures compatible with underwater imaging. Jaw retains natural bluntness and authentic bone width, no sharp V-line.

Loose black hair floats freely due to buoyancy, forming soft wavy lines to both sides and above, with fine strands across the forehead and bright edge highlights. Wearing light, translucent white ruffled fabric with a V-neck and layered ruffled collar, floating softly in voluminous waves.

Sunlight refracts from above creating caustic highlights on hair, water, and sleeves. Balanced lighting consistent with the aquatic environment. 4K resolution, authentic photographic quality, soft focus falloff. Small handwritten lowercase English signature 'lyshen' in the bottom right corner.