underwater coral 3d model

Organic underwater rock and coral formation inspired by real coral reefs, natural and refined shapes, smooth erosion, rounded and layered geometry, not cute, not cartoonish, not fantasy style. Bright and clean ocean color palette: soft turquoise, pale aqua blue, light mint green, subtle coral beige, low saturation, high clarity, healthy and fresh ocean feeling. Surface texture is matte and natural, inspired by real limestone rocks and living corals, documentary style, realistic but simplified, suitable for exhibition space and architectural installation.