Hmm....
Well, I don't really know what to say, but yeah, I think this is a good experiment.
I dare you though, to mix melody with "noise" and maybe even a whole tone scale, key changes or tempo changes, and create something with strong contrast that sucker-punches the listener throughout. XD
Lol. Anyway, you're doing good. I'm just wondering what you're going to do next. :D