Korean Graffiti Illustration Portrait

Based on the user-uploaded photo, create a {argument name="illustration style" default="Korean-style hand-drawn graffiti illustration"} character poster. Retain the person's real identity features and overall temperament, but the overall presentation should be clearly slanted towards illustration rather than realistic redrawing.

Style Reference: Korean semi-realistic illustration, distinct character feel, natural and expressive facial emotions, half-body composition, slight dynamic poses. Emphasize loose, spontaneous hand-drawn lines, black ink outlines, ink splatters, sketch-like strokes, visible brush textures, and a blend of soft pastel tones and ink shadows, presenting a manga-sketch-like texture.

Do not make it a highly realistic illustration; do not make it look too much like a photo. It should have more of a "drawn" feel, with free lines, loose edges, and partial areas feeling slightly unfinished. Hair and clothing details should be rich, and the overall look should be exquisite yet with a casual graffiti vibe.

Keep the background simple, such as {argument name="background" default="pure white or light-colored paper texture"}, and freely add a few symbolic decorative elements around the character like {argument name="decorative elements" default="handwritten short phrases, stars, hearts, arrows, ink dots, small stickers"}. Please let the copywriting and background atmosphere develop freely based on the character's temperament. The overall result should be high-end, light, and agile, like a Korean-style hand-drawn character poster that would go viral on X.

请基于用户上传的照片，创作一张{argument name="插画风格" default="韩风手绘涂鸦插画感"}人物海报。保留人物真实身份特征与整体气质，但整体表现要明显偏插画化，而不是写实转绘。

风格参考：韩风半写实插图、鲜明角色感、自然有表现力的面部情绪、半身构图、轻微动态姿势。强调松散自发的手绘线条、黑色墨水勾线、墨迹飞溅、草稿感笔触、可见笔刷纹理，以及柔和粉彩色调与墨水阴影的混合，呈现漫画草图般的质感。

不要做成高度写实插画，不要太像照片。要更有“画出来”的感觉，线条自由、边缘松弛、局部略带未完成感，头发和服装细节丰富，整体精致但有随性涂鸦感。

背景保持简约，可以是{argument name="背景" default="纯白或浅色纸张质感"}，围绕人物自由加入少量{argument name="装饰元素" default="手写短句、星星、爱心、箭头、墨点、小贴纸"}等象征性装饰元素。文案和背景氛围请根据人物气质自由发挥。整体要高级、轻盈、灵动，像 X 上会火的韩系手绘人物海报。