This coloring page features a peaceful blue fish with yellow fins. Its large eyes and wide-open mouth make it look like it’s swimming with a happy grin. Its body is slightly curved, giving the appearance of motion as it swims toward the right. To bring the fish to life, I would choose bright colors for his fins, and use shades of blue for his body. A nice contrast would be to use yellow accents for the eyes and a lighter yellow for the mouth. Finally, adding a few details like scales or a shade of pink to its cheeks would give the fish a touch of extra personality.