The leg and foot animation is very smooth and well done, and the head animation is great, but there's only three problems.
The tail waves a little but usually sticks just a little downward, or completely outward. The rump/butt/whateveryouwannacallit should go up more when the back legs kick off.
And the tail...is really, really spiky. No offense but it looks like a porcupine. were it just a smoother as if the fur were flowing backwards it'd be perfect. Same with the rest of the fur; it should all be flowing across the body towards the back due to the fur flowing back in the wind as the wolf runs forward.

thanks for the advice
it helps a lot

Awesome :3 Epic animation, wish I could do something like that. XD

it was harddddd
i seriously thought i'd go crazy lol

But it was worth it