
As I was drawing it, I realized that some of the marks were looking representational, so I kind of began to emphasize that, while trying to keep it basically abstract--to represent the spirit of, umm, "partying down" without showing any actual recognizable shapes.
Then I decided to see how an actual representational drawing using the same composition would look, so I basically re-traced the shapes by turning them into cartoony images, then colored it:
