Not too shabby!
The backgrounds were quite nice, and the choice of music was good. Clipping was well done, nothing that didn't actually hit me did damage (compared to most submissions where triangular spikes are programmed to have rectangular hit areas and...bleah :P good job!)
My only complaint is that it seemed a little thin in places. About half the screens didn't have much of anything on them in the way of actual gameplay objects. Still very pretty, just a bit thin.