Photorealistic underwater tree in vibrant coral reef

Photorealistic underwater scene of a weathered, ancient tree rooted in a bustling coral reef. The tree's trunk and large branches are encrusted with coral polyps, sponges, and algae; colorful corals such as brain coral, staghorn, and fan coral wrap around the limbs. Small reef fish, wrasse, and tangs swim among the branches while sea anemones and barnacles cling to the bark. Light from above filters through clear turquoise water, casting dappled beams and shimmering reflections on wet bark. The seabed is a mix of soft sand, rubble, scattered shells, and patches of seagrass, with additional coral outcrops and crevices in the background to suggest depth. The scene should feel serene and otherworldly, with high detail textures: rough bark, rough coral textures, and the slick, glossy surface of water; color palette of vivid blues, greens, pinks, and oranges. Shot with cinematic underwater lighting, roughly 3:2 aspect, looking slightly up toward the treetop, depth of field that keeps the tree in sharp focus while the background reef blurs slightly.