Hi Aaron.
Nice work overall. I like the hand combos, and the flying knee was especially sweet!
It looks to me, however, that you are falling backwards after you round kick to the head of the dummy. Are you having trouble kicking that high? If so, work on lower kicks during which you can control your kick recovery and foot placement better. Falling backwards when kicking can not only result in a loss of power in your kick, but gives a nice opportunity for your opponent to rush in and take you down as well.
BTW - I've never used one of those "Hit Man" dummies. Do you like it? It looks like you were knocking it around quite a bit. How stable is it? Also, the torso seems a bit high, and there are no targets available lower than the abdomen (or so it seems) - does that work well for you?
Thanks,
Mike