Getting the eye right is a challenge. I'm going to practice the "angry eye" more. As a balloon artist, I tend to typically draw "happy/cute" eyes! I like this shark design. Like everything, need to practice, practice, practice.
The dolphin lower jaw is a bit big in this one but still has a happy feel to it. These are drawn without any "water" or other design elements. My focus right now is getting the "big picture" nailed and then I'll work on the additional elements.
It was a "happy accident" due to the size of my brush that the lower fin has a bit of a curve in it. I like it though - gives some movement to the form. So I will probably never be able to do it again - LOL! But will try!