I love wolves so I wanted to rate this high, but it just doesn't quite do it for me. Maybe if the back leg that's in the air was a little easier to see... it would make him (or her?) look more in motion. Still, nice pic!
Interesting application of motion blur. Great subject, it's a shame he doesn't stand out against the background too well. His rear legs look a little awkward in this shot. I'd have liked a lot of negative space for him to walk into. The main focus here should be his eyes, and they are too much to the side of the frame for this to feel comfortable.
The wolf is a gorgeous creature :) The composition here is a bit awkward for me. My personal taste would prefer a wider view which would give the wolf more room for 'movement'. You may suffer some loss for lack of blur, even though there is some visible... = 5