To be honest, I liked the idea of orchestral instruments and dubstep genre. But as I said before, your potential won't be fully realized in a $15 mobile program.
I think we could do something more epic and add even more elements to fill out the mix and all that, so that it doesn't sound boring in some places.
Overall, as I said, I really like the idea! It reminds me of classic dubstep, which I've been liking lately.