Happy birthday to YOU!

character: watanabe_you. Anime illustration of watanabe_you holding a birthday cake in a cheerful medium shot from eye level, centered in the frame. She is a young gyaru girl with short brown hair, blue eyes, wearing a school uniform consisting of a white short-sleeved shirt, pleated skirt, and subtle jewelry. Her pose is joyful: both hands securely grip a large, multi-tiered pink birthday cake adorned with white frosting, colorful candles, and "Happy Birthday" text in intricate detail, arms extended slightly forward. She smiles brightly at the viewer with sparkling eyes and subtle blush, conveying excitement. Soft pastel background with floating confetti and heart particles. Great quality, best quality rendering with ultra-detailed textures on cake icing, fabric folds, hair strands, glossy highlights, warm ambient lighting, vibrant color palette, whimsical celebratory atmosphere.