This look really good!
I agree, maybe the nose is a tad bit too long, but it's hard to tell. I googled up some refs, and in some shots it's spot on, but in others it's off..... So I'm guessing it's the angle.
The only other thing that I see, is the nose needs to be slightly more defined. Just make it a bit more prominent.
Anyway, this is really nice. You don't see many people modeling (realistic) animals around here
Great work!
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