Pretty good graphics, but no substance
The character design was simple, yet cute. I liked it, and its definitely a bit better than generic line art (used some shading). Keep it up and I'm positive you'll get much better in time.
But the actual content of the flash was just lacking. All that happened was a guy got kicked in the head...
And it took a long time for that to happen. Insult.... cry.... laugh..... kick..... hi...
You needed either more interaction between the characters or to speed up what you did have.
Music was nice, but I didn't hear any other sound effects, not even for the kick. In the end its up to you whether or not you want them - maybe a stylistic thing, but I would have liked some sound. Doesn't have to be loud or complex, just something simple.