Well for the Start, it is a very nice Drawing
But I'd say the Fur is maybe a little too short for a wolf, especially the nape of the neck. The snout doesn't look too wolfish, too, actually the snout is the greatest problem, it looks too much like a Dog than a wolf.
The forehead, the Eye and the... uhm let's call it cheek (feel free to correct me) look awsome though, If I saw only that part I'd say "That is definately a Wolf"
Yeah, I tried drawing something like a wolf using a referance, but not directly from a picture. I may have had my german shepard in my head while I was drawing this or something. This was really my first time doing something "semi" realistic in a long long while. I was trying to see if I could make a wolf because I could and someone asked me to draw it a while ago. I'll have to get another crack at it again sometime to make it actually look like an actual wolf, because it does look more like a domesticated dog than a wolf. Thanks for the critism!