I checked out the wiki entry (you can learn, too!). My favorite fun fact about oceanic whitetips is that it is an "aggressive but slow-moving fish [that] dominates feeding frenzies..." :
(this is how i imagine those going down)
here are some actual sketches
Day Two :
I tried to muster the energy to draw more sharks at the end of the day, and this is what came out. Poor bramble shark.