Ultra-detailed scene featuring a character with pink, long, messy curled hair and a distinct ahoge. Their hair appears wet, and they are wearing an unbuttoned white shirt. The setting is an underwater oceanic world teeming with colorful fishes, vibrant coral reefs, and scattered shells. The character's expression is emotionless as they float in the water, surrounded by glowing pink particles. Captured in stunning UHD, HDR, 8K quality. Please ensure no elements such as duplicate or disfigured features, cross-eyed expressions, or any low-resolution aspects interfere with the scene. The image should be clear with no out-of-frame, blurry sections, or unwanted artifacts, maintaining a realistic and seamless appearance.