Alright..
What is going on in the image doesn't match up with the sound at all. It's a real shame. That's the first thing you should always try to do - make the sound part of what is happening.
The second issue is with the loop. The song just cuts dead and there's this 5 second or so period when nothing is happening at all except one of the band members twitching.
And finally, there's a real lack of variety with what happens on the screen. It's just 2-3 images of each band member stuck together without much consideration for the music playing or anything. Yes, those 2-3 images do fly around on the screen a bit, but that's just not interesting.
Your drawings are nice. I like that. But you need to *do* something with them. Have something interesting happen on-screen. If you choose to have sound, make it match what is going on. This is absolutly crucial.
Good luck with your next piece. I hope you learn a lot from this one and make the next one really fantastic :D