This majestic shark is truly a sight to behold. Its dark blue upper body complements brilliantly with the stark white of it's underside. It has two dorsal fins, the first being notably larger than the second, and an anal fin. Its tail, though curved, appears quite powerful. Its mouth is full of sharp, triangular teeth that suggest that you may want to look, but don't touch.
To bring this picture to life and make it your own, I recommend a gradient effect to create contrast. Start by coloring the dark blue of the upper body a rich navy and then use a lighter blue to color the underside and tail. A light yellow could be used to color the fins to create a realistic effect. To further that effect, the edges of the fins should be line with white. Finally to complete the look, give the inside of the mouth a bright white and the teeth a darker shade of blue.
Enjoy your masterpiece!