The Bull-creature

Here's the last thing I made for my Zbrush class. It doesn't look much like a bull anymore but that's what I've been calling it so....

I wanted the rock armor to look like it was growing out of him, but it didn't quite turn out like that. I think if I go back and work on him again i'll put more fur around the base of the armor, but i'm sick of it now. The program kept crashing, and i had to redo stuff at least 3 times because the file would save and then couldn't open because of the amount of polys.

Base made in Maya, sculpted in Zbrush.

EDIT:
here is the sketch and orthographics for it