日系清冷夏日半写实插画主体xxx

日系清冷夏日半写实插画，主体为【xxx】，9:16，低机位仰视，主体占画面中心。深邃高饱和钴蓝天空，少量厚重白云，强烈蓝白对比。晴天硬光侧上方照射，冷白高光，蓝灰阴影，皮肤与衣物带蓝色环境反光。厚涂结合细线稿，笔触精致可见，五官冷淡清透，发丝轻微飘散，服装宽松洁白、有褶皱和冷蓝反光。整体清冷、安静、孤独、自由、夏日透明感，像高级日系文学插画与诗歌封面。无文字无水印无logo，无摄影感无3D。

Japanese-style cool summer semi-realistic illustration, subject is [xxx], 9:16, low angle shot looking up, subject occupies the center of the frame. Deep high-saturation cobalt blue sky, a small amount of thick white clouds, strong blue-white contrast. Sunny day hard light from the top side, cold white highlights, blue-gray shadows, skin and clothing with blue ambient reflections. Impasto combined with fine line art, delicate and visible brushstrokes, facial features are cold and transparent, hair strands slightly floating, clothing is loose and pure white, with folds and cold blue reflections. Overall cool, quiet, lonely, free, summer transparency, like high-end Japanese literary illustrations and poetry covers. No text, no watermark, no logo, no photography feel, no 3D.