hey nice job.. couple of things tho
sometimes there were no backgrounds, just a blank page, it would add a little bit more if you were to add a setting..
oh and to give it just a little bit more i would suggest doing lip syncing with the voices. there are tutorials on this site just search lip sync
and the sound quality changes quite abruptly sometimes, it's odd.
but either than those small things i thought the story was good , and well executed haha with them all getting unicorns, i expected them to laugh at him and he like.. committed suicide or killed them or something.. iono.. haha nvm.. good job you made me laugh ^_^