Water Spirit

Little thing I made in Graphic Arts class. I was bored and I had finished all my projects. Yep. Ok, so the story with this horse is that she is the spirit (you could say "god") of all water. She can leap from oceans to lakes to ponds to rivers and so on. She can change her size (not shape) from Whale Shark to guppy. Protecting the creatures that reside in her waters from greedy men, who kill for selfish reasons. Sinking their ships and possibly drowning them, depending on what she feels in their hearts. Able to sense anything and everything, anywhere in the world in her waters, moving faster than a cyclone. Haven't given her a name yet. Any suggestions?
EDIT

Well, thanks to ~teardrop-wolf's wonderful creativity and originality, I have decided to go with her(?) (i apologize if wrong about your gender, I just assume) name suggestion of "Naida". Congrats!

Character (c) ~Yazora