(masterpiece, best quality, ultra detailed, high resolution), anime style, clean lineart, soft gradient shading, ### キャラ（寄り構図） 1girl, small petite girl, cute young girl, half-up hairstyle, slightly wet hair, soft moonlight highlights, towel wrapped around body (safe), upper-body close-up, ### 表情・しぐさ（新要素） eyes closed peacefully, singing softly, small gentle smile while singing, one hand lifting a small towel to her cheek, wiping moisture, natural gestures, delicate fingers, subtle water droplets on her skin, ### 温泉背景（実写より） realistic Japanese open-air hot spring at night, warm drifting steam, stone bath textures, bright full moon in the night sky, gentle moonlight on her face, soft night ambience, quiet and serene atmosphere, ### 小物 a small wooden tray floating near her, on the tray: a small "snow rabbit" (yuki-usagi), white, round, red berry eyes, small leaf ears, tray floating with gentle ripples on the water, ### 全体 cinematic lighting, depth of field, anime-style character with realistic background, soft steam haze, calm night tone, peaceful vibe