The BG was just a test, but I am very proud of myself for this! Tell me what you guys think.
http://filz.us/hwp

the combat is not that bad, it has good build up, you just need to work on your easing and its a bit toooo stiff and not enough fluidity

The BG is nice.
Although, you do have a resizing problem and some of the stick figure's movement were kind of stiff.

GOOD. Combo... You just need to work on your resizing... Other than that. Good BG

Thanks

Maaajor resizing, it's like you didn't even look back at your frames, your gravity is all messy, you seem to be double framing at the wrong time and it's fairly choppy.
Try doing all single frames, then double frame at the part where it needs easing the most, could help. I like your combo ideas, just needs work with the actual animation.

others already mentioned the resizing. one thing i noticed is he doesn't carry any momentum in his kicks or flips. and you used his head as a pivot point for the last flip.