An iridescent holographic sticker sheet with stars, planets and hearts, rainbow foil reflections, clean die-cut edges. soft 3D mascot sticker, rounded chibi proportions, glossy but simple materials, clear expression. three-quarter view with clear silhouette and subtle depth. bright friendly palette suitable for Korean mobile UI. Make the subject immediately recognizable at thumbnail size. Use clean composition, purposeful details, and no watermark. Keep the result clean, sticker-like, simple, bright, and readable; avoid busy backgrounds, tiny details, and unreadable text.