This'll be thrown into my scraps folder once i've done up an official design document, but in the meantime here is my process!

I wanted to design something different for shark people/critters and so I came to this purely by accident. As you can see at the top, out of frustration I drew a derp faced shark guy then realized the idea wasn't so bad.

I'm not sure if something like this has been done, and if so; dangit! If not? Sweeeeet, 'cause I really like it.

Full view for deets.