This detailed illustration features a diver wearing a full suit and mask, holding a camera to photograph a large, cheerful shark. In the background, an old wooden shipwreck rests on the sandy bottom, with a heavy anchor nearby. A treasure chest has spilled open, revealing a pile of gold coins that catch the light.

Looking closer, you can spot an octopus waving its tentacles and a small seahorse drifting near the swaying seaweed. Tiny fish swim in schools while crabs scuttle across the seabed. Bubbles rise from the diver and the fish, adding movement to the scene. You can also find a delicate starfish and various seashells scattered near the colorful coral reefs.

For the water, you can use different shades of blue, making it darker near the shipwreck and lighter near the surface. The shark looks great in soft grays or even a friendly light blue. Since this is a cartoon style, you can use bright, bold colors for the tropical fish and the octopus to make them pop against the ocean background.

The treasure chest and gold coins look best with shades of yellow and orange to give them a metallic shimmer. You might use a brown or deep mahogany for the old shipwreck to show its age. To add a bit of texture, try using small dots or short lines on the coral and seaweed to make them look more realistic and detailed.