What a freaking long time it's been since I've f-ed around with Pivot.

my only comment.... make the arms longer

Lol, How can the sword go through his body, and him stilll live? (OMG, bad grammer)

Well, people are usually three dimensional, which MIGHT MEAN that it COULD be POSSIBLE for the sword to go NEXT TO HIM

Its good.
Just work on the stiffness on the back bones and ease a little more by adding more frames.
Try to move every limb [dots on stick] in every frame. That makes it much more fluid and smooth.

Just fix those and you should even better.