Meh....

the movements looked unnatural but you put a decent amount of effort into it

I'm not sure what to say...

I mean, you obviously put work into it, but then again, the stick figures change sizes like crazy. They go to like double their size at times! And sometimes a face appears on them for such a short time that one can't really see it in time. But you did put sound effects that matched the animation somewhat, and you used a preloader (I think) so that's good. I suggest you keep practicing so you can become better =). And I also suggest you move from stick figure fights, and preferably from stick figures overall. If you're not a very good artist, it's okay, there are still simple characters one can draw that aren't stick figures. Keep practicing though, I hope to see something awesome from you one day! I can even try to help you out a little if you'd like, but I myself am a pretty crappy animator.

Another stickfight...

No offense but the stick fighting genre is already way overdone. If you want to break into it you need to come with all guns blazing and this wasn't up to par.

all right...

the animation was bad. BUT, from the looks of it you have barely started animating. having a play/pause button tells me that you're learning some good stuff. keep practicing.