Place the shape onto paper towels then color the diffusing paper with washable markers. The higher the marker concentration, the more intense colors will be.
Place one or more wet wipes directly over the colored sealife shape, overlapping as little as possible. Press down lightly.
Spritz water through the wipe, covering the wipe with spray. Allow to sit for about 5 minutes.
Remove the wipes and set sealife shape aside to dry.
When dry, add creature details with markers if desired.
Display hanging from the ceiling or in a window. Diffusing paper is translucent, so colors really glow when light shines through.