It's a good picture
Pretty good! A few suggestions i like to make is for first, maybe make the the front hair a little bit thicker at the bottom, and also as an optional effect maybe give the hair more motion (less stiff) examples: blowing around in the wind, snow particles getting stuck in between hair strands. One more thing is put some more curve and realism into his snout. Other than that, your work is highly impressive. Good job.