It's okay
The loop got a bit annoying but that's beside the point. Perhaps a bit more story other than a guy saying he's going to wear socks and sandals and then getting shot in the face. Perhaps a bit of color. Not bad for a first flash but not really great either. I did like the syncing, some guys who have been doing flash for a long time still can't get it right. Overall, like I said not bad, keep at it and then work on some character design as you get better at it.