Technically good, but lacking content
If you say your friend made the background I believe you; I've made "fake" old paper myselfs once so why not?
The animation is good. The mood is good, thanks to a good choice of background music and that old paper thing. It's short and pointless though, which I mean less downgrading than it sounds. There's no story or gag or punchline or moral or anything, and I think that if you combined your technical prowess with a good story or joke you could make some really good flash movies. But right now, this a just a "look at what I made!" animation for "look at what I made"-'s sake. Still, it's not without it's charm :-)