Not bad
Well like the last review said, the sprites were good, so i don't think you need to worry about that next time as long as you did as you did in this submission. I'm aware that this is your first sprite flash and that doing the background would take more time, etc. One thing you should do though is have some sort of different scene, rather than just one area where they fight. But still, the animation was good and hopefully your next movie will be better than this one (not theres anything wrong with it). Keep it up