character: Zerø, A medium shot, eye-level illustration features Zerø, an angel girl, centered in the composition. She has a joyful ":d" expression, with round sky blue eyes, small thick eyebrows, and very long, straight pure white hair with cropped bangs featuring sky blue streaks and colored inner hair. A large ahoge protrudes from her head, and a light blue halo floats above her. She possesses a flat chest and wears a white and blue robe, with large white angel wings extending from her back. She is happily holding a birthday cake with both hands, with the words "happy birthday" subtly integrated into the scene. The background is filled with various colorful gift boxes, partially obscured by a soft haze. The visual style is anime-inspired with strong line art softened by watercolor washes, featuring colors that blend softly into the background, strong atmospheric perspective, and a gentle, luminous depth of field.
