Good set design, but your fps is way too low. You need to shoot more photos and you need to have them play faster, so that you get smoother animation. What do you edit your films with currently?

"Nothing goes down 'less I'm involved. No nuggets. No onion rings. No nothin'. A cheeseburger gets sold in the park, I want in! You got fat while we starved on the streets...now it's my turn!" -Harley Morenstein

You want to download MonkeyJam: http://monkeyjam.org It's free and totally awesomesauce.

Use MonkeyJam for each shot, and then put all the shots into WMM and edit sound and stuff there. WMM's highest framerate is really low and not good for animation. At all.

"Nothing goes down 'less I'm involved. No nuggets. No onion rings. No nothin'. A cheeseburger gets sold in the park, I want in! You got fat while we starved on the streets...now it's my turn!" -Harley Morenstein