might wanna slow down the breathing a little bit, get rid of the white stickman, take some frames out of the light wave thing, and add maybe 1-2 transition frames in the slash
Where he hell is his lightsaber thing even coming from?
It just "appears" in his hands all of a sudden.
Also the jump to the thrust frame is pretty big.
http://pixeljoint.com/pixelart/32479.htm
Hopefully one of my animations can help you get some inspiration or an idea to ease into the swing before you go right to that last pose.
owww noo i didnt saw them!!! i guess i have to correct it 
thanks for notice it
At the beginning, when he's breathing :D Later it changes in an outline :) And look that bedefore the slash (breathing and backstep) his left foot isn't shaded :D
The white lines where the head is. If you look closely, you'll see it below the arm and next to the left foot. The white lines are distracting.
i know but its something that i abandon time ago, maybe someday i finish it
Animation is strange... It could be smoother. But it's nice pixelart. 
PS. I prefer Dessan. 
view it on a dark bkg and you'll see what i mean