Ok... so...
There is a lot I can say here, a LOT... and I suppose I will.
Before I start though, I won't bash you for toying with (and succeeding with) stickfigures, because I've been there, not only is it fun, but it's also a tough habit to break (especially if you don't consider it a negative habit).
I will however, tell you that you are wasting lots of time and talent on pivot. It's clear that you can do much better than.. oh say, the majority of "stick animators" out there, and the fact that you've done as well as you have with pivot only goes to show how good you actually are. You have a maddening amount of potential that you won't be able to live up to unless you switch to a more "free" program. Hell, I would even reccomend easytoon over pivot, anything that allows angles and other things of that nature which would increase the quality of your movies 10-fold.
And not to sounds like a hypocritical broken record, but you have skill, and you also have talent. I'm not suggesting that you "stop" animating stick figures, but I definately suggest experimenting with full figure (if you haven't already). I have a good feeling you can do some great things in due time.
Anyway, I rambled on a bit there, my apologies. The movie was good, and I have given it a 4. The action was great, especially considering everything I just went over... there was no story, or at least not one I could follow, but clearly that wasn't the point, so I won't "downgrade" you for it. Another future tip though is to incorporate some story line. Mindless slaughter and fighting is great, but in the end people enjoy being able to identify with a character, they enjoy getting "involved". When a character dies, people shouldn't just shrug and say "oh wellz", they should feel it...
So, overall, nice job. I wish you luck in your future endeavers. You have the potential to do great things, so go do them.