Nautilus Drifting Past Reef Wall in Shadow

A chambered nautilus with a spiraling shell of creamy white and amber bands glides through dark, turquoise water. The creature moves past a vertical reef wall composed of jagged, shadowed coral formations in deep indigo and charcoal. A sharp rim of cool light outlines the nautilus's shell edge, separating it from the gloom of the crevice below. Tiny suspended particles float in the water column, catching the faint illumination like scattered diamonds. The low angle view emphasizes the height of the reef wall looming above. Fine textures of the coral rock contrast with the smooth, glossy surface of the shell. A faint reflection of the rim light shimmers on the water's surface above.