A mesmerizing underwater coral reef teeming with life, featuring vibrant coral formations in shades of red, orange, purple, and yellow. Schools of tropical fish in dazzling colors swim gracefully through the crystal-clear water, with rays of sunlight filtering down from the surface, creating a magical interplay of light and shadow. Sea turtles glide gracefully, and a few jellyfish float ethereally in the background. The scene captures the intricate details of the marine ecosystem, from tiny crustaceans hiding in the coral to the shimmering textures of fish scales, in a photorealistic and richly detailed style.