Cools sounds overall, but there are some sonic problems. A lot of the sounds seemed flat mono. Some subtle stereo delay on some tracks might spice them up a bit. You could also move some of the sounds a little off dead-center to add some more space. It wasn't until the parts with the crazy panning that I realized it was even in stereo.
At about 1:44, where the robot vocs start, there is a lot of hiss that kicks-in for the duration of the vocs. Some of the sounds (like the one around 1:27) start distorting a little. Nothing major, but lots of little things that distract me from the piece.
I like the idea, and I realize you may be limited by the gear you're working with. But there are definitely some things that could be cleaned up in the mix.