Great stuff
You've really got some talent. I think they're feeding you guys something at Manwoods these days, I wasn't that good when I was your age. I hope you learnt at least -something- from my animation workshops!
Seriously, great work. I can suggest a couple of things for you...
try 'easing' your movement a little bit more. Put more drawings towards the end of the movement to slow it down naturally. Don't forget your anticipation movements and maybe a little follow-through on things like hair and clothes.
Oh, if you ever get the chance to do some life drawing (complain to Mrs Bradberry) make sure you do, it'll really help your animation.
-Dim