The swing west animation seems much weaker than the swing south one. The motion blur looks better if it doesn't last more than one frame, and his arm should follow-through a bit further. Maybe raise up the attack angle a bit too, it looks like he's slashing at someone's knees. (This would be alright if there was more than one angle of attack.) The sword also looks shorter.
The south walking animation need a lot more work still as well. It seems a bit disjointed, especially since the head stays perfectly steady left and right (it should), but the body moves around in an odd fashion. Not really sure how to describe it... If you want, I'll see if I can do an edit for you when I get some time.
The west walking animation is not bad at all, though he doesn't appear to be looking in the right direction, I think the eye is a bit too far on the side of the head.
All that said, I really love the swing south animation, it's excellent.
