Should really try and work more on the animations before you submit them to pixeljoint.
Anyways, I noticed you had all the frame rates at different speeds so I made them all about 8 or 10 I think.
Added some tilt to your sword, also got rid of most of the fading motion trails.
Never been a fan of them, motion trails are usually quick, it's the point of them.
Your guy is SO skinny it's scary, is he made of of rubber?
I did a bit to his lead leg and his back foot.
Also your guys right hand switches straight to the top of the handle while he goes to rotate the sword...