Innovative
I think that while you've got the basic melody going, the main problem sounds when you put everything together, as the main tune itself sounds very ragged - the counter melody doesn't go well with the rest - it's either too sharp or too flat. It certainly sounds as if you haven't experimented with how they should all sound blended together. Don't get me wrong, some parts work, but others really don't, which is a shame.
I'm not entirely sure as to where you've come up with the waterfall metaphor from, either. To me, it does sound like some sort of a rainstorm, but not that kind of speed that a waterfall runs at. I'd say that if you were doing a waterfall, you'd need to make it quite fast for the whole thing and end the tune abruptly, because technically there is no stopping a waterfall. Looping it might work well as well.
[Review Request Club]