Could be better
Play button could use better hit detection (i.e. you should make the holes in the P and A count as the button, as well).
PBass's part was particularly well done. Some of the other ones were pretty good, other ones not so impressive. Overall, I think everyone else should've tried a bit harder. When you're doing a collab like this, you only have to do a short amount of the animating... Like, just 10 seconds or something. It takes me somewhere between 1-3 hours to animate around 1 second worth with pretty decent detail. It's not like you had to get it all done in a day, so I don't think it would be asking too much that each person put around 10-30 hours into their segment.
Most of these barely had any frame by frame, really. There's a time and place for motion tweens, but I don't think 80% of a collab between 9 artists is appropriate. A lot of this just felt kinda cheap.
I didn't feel the connection between Icandraw and JKAmovies at all (by the way, you have one sweet avatar, JKAmovies)... I agree with Nicholas-Deary's points.