Do you not like drawing hooves? It looks like you blocked out most of them, and had some trouble with the one that's showing.
Other than that, I like it. There could be more rock piles, and less spaced out rocks, they seem to all be perfectly spaced out from one another. But this is all nit picking from purely an art critique point of view.
The antlers and coat are definitely where your talents shine the most. Those antlers are absolutely photo realistic, like I could pick them right up off of the paper. Truly a beautiful piece that you should be proud of.

are you looking at the same thing as me? The rocks are fine. Look at the rest of the photo I think he can handle a simple hoof.
Freaking awesome man if you told me this was a picture I wouldn't doubt it one bit!
Outdoor Hub mobile, the outdoor information engine