A school of fish swims through an underwater coral tunnel with light streaming from beyond.

Tropical Landscapes Coloring Pages

Underwater Coral Reef Tunnel Coloring Page

Coral formations arch on both sides, creating a natural tunnel while a school of fish glides toward the light-filled background. The gradient from dark foreground to bright center gives you a perfect chance to practice shading techniques. Try using blues and teals in the shadows, then gradually lighten toward yellows and whites in the lit area. One of our more atmospheric coloring pages.