Wow! This is actually pretty cool! It's a shame that people aren't noticing this because it is awesome!
I too am currently working on a concert video, and so I know how hard it is to do that kind of thing. For this reason I can understand why a few scenes were choppy (e.g. the crowdsurfing)
Other than that I feel like you did a very good job with the animation, set design, etc. The one issue is the scene with the hippies on the surfboards, the movement did not seem the most realistic.
Good job overall though