The wolf's back leg feels detached in both animations because of the shadow (or is it patterning?) at the top of the thigh. I think it would look better to have that bit be light.
In the idle animation, the tail being raised so high without any other movement feels a bit unnatural, that's something you might see in a show-dog, but generally not a wolf, I think. I think having the tail wag, or having it in a lower position would look more wolf-ey.