You need to make sure that his back is always straight. You also might want to slightly tone down the amount he moves his arms. Keep working at it.

I   acciden tally made it at a bad size.

Watch out for corners. What your guy does here is arrive at the corner with his right leg out, brings it back to a standing position, then sticks it out again to take the corner. Doing that makes it look a little stuttery. Whenever I know there's going to be corner turning, I work out what leg my guy will be turning on, count back the number of studs to his start point, then make sure I start on the correct leg.

Also, even if it's a test of animation technique, try to fix your white balance and things like that, or people will comment on that instead of the animation.

did you use my camera? LOL!

15 fps.