基于角色设定图的 VTuber 出道宣传海报

Using the provided reference image as the character and design base, transform the clean Live2D model reference sheet into a polished VTuber debut announcement poster while keeping the same character design, hoodie, headphones, choker, star and constellation motifs, and overall purple-blue night palette. Change the composition from a full-body reference sheet to a dramatic upper-body key visual of the character seated at a streaming desk, one hand near the face, in a cozy nighttime bedroom-studio. Add a starry city-night window background, curtains, hanging star ornaments, glowing monitors, desk microphone, keyboard/controller, and a drink mug, with soft cinematic lighting and sparkly atmospheric effects. Preserve the branding of Yume Asta and make the layout feel like an X/Twitter thumbnail or promotional key visual. Add dense decorative typography and framed info panels in elegant Japanese idol/VTuber promo style: a large title with the Japanese name and romanized 'Yume Asta', a short poetic tagline, 4 boxed profile sections labeled 'Profile', 'Like', 'Keyword', and '配信スタイル', plus 1 smaller boxed hashtag/community section at the bottom left. Add a large glowing headline at the bottom center reading 'VTuber Debut' and 'Coming Soon', plus a ribbon-style banner beneath it with Japanese debut-stream text. Make it richly detailed, dreamy, luminous, and premium, like an official VTuber debut teaser poster.

以提供的参考图作为角色和设计基础，将简洁的 Live2D 模型设定图转化为精致的 VTuber 出道官宣海报，同时保留原有的角色设计、连帽衫、耳机、项圈、星星与星座元素，以及整体的紫蓝色夜色调。将构图从全身设定图改为更具戏剧性的半身主视觉图，展现角色坐在直播桌前，单手托腮，置身于温馨的夜间卧室直播间。添加星光熠熠的城市夜景窗背景、窗帘、悬挂的星星装饰、发光的显示器、桌面麦克风、键盘/手柄以及饮料杯，并辅以柔和的电影级光效和闪烁的氛围特效。保留 Yume Asta 的品牌标识，使布局呈现出 X/Twitter 缩略图或宣传主视觉图的质感。加入密集的装饰性排版和带框信息面板，采用优雅的日系偶像/VTuber 宣传风格：包含日语名称和罗马音“Yume Asta”的大标题、简短的诗意标语、4 个分别标注为“Profile”、“Like”、“Keyword”和“配信スタイル”的方框简介，以及左下角一个较小的标签/社区方框。在底部中央添加醒目的发光大标题“VTuber Debut”和“Coming Soon”，并在其下方添加带有日语出道直播文字的丝带状横幅。整体效果需细节丰富、梦幻、明亮且高级，如同官方 VTuber 出道预告海报。