A subtle, natural living-wallpaper animation. The character holds her diagonal reaching pose almost still, with only gentle micro-movements. Her long silver hair drifts and floats smoothly in the underwater current, with soft, fluid waves. The white ruffled dress billows and sways gently and weightlessly in the water. Her body has a very slow, calm breathing motion; her eyes blink naturally and softly as she gazes upwards. Transparent bubbles rise slowly and continuously towards the surface. Colorful fishes swim calmly and smoothly around her in the background and foreground. Underwater light rays shimmering from the surface gently shift and dance across her face and arm. All motion is small, soft, fluid, and slow-paced, simulating realistic underwater physics. The animation loops seamlessly and naturally, creating a serene, dreamy, and mystical aquatic feel. Avoid any large, sudden, or intense movements.
