Well, since this is your first flash, I will give you credit for pretty smooth animation; but the graphics are cheezy. I have nothing against stick figure movies (I like a lot of them) but this is so unoriginal and, frankly, boring. A couple of sticks banging into each other and bouncing off walls, accompanied by canned sounds and cheezy blood splatters is so overdone, don't ya think? You will do Ok, you have the basics down pretty well it seems; you just need to come up with a something unique and different in the way of setting and plot. Good luck and keep at it.
You may want to check out "Johnny Rocketfingers" for some inspiration on how to do a really GREAT stick figure flick.