I felt like making something really big and detailed. It was originally going to be a huge cannon thing, but i decided to make it more artistic and it just looked like an Amphitheater to me, so i changed a few things and viola! 
anyways, here are some pics:
any and all crits are welcome.
i added some lights and the conductors podium:
any crits or anything at all?
some small renders of the added lighting:
slick, i like where this is headed. how about some textures (even just procedurals)?
i added a conductor and a few materials. the cubes are just to see how stuff will work in the stage lights:
just wanted to say that i moved it to the focused critique forum, i need more feedback!