its nice but not perfect, here are my thoughts:
+ the song went through some nice stages, the little modifications to the beat did well.
- I think a few people have stated this before, but you need a greater pitch range, which is done by moving up and down the octave scale a bit more. and it results in more frequencies being audible, especially if you have different layers of instruments at different octaves.
+ the loop is almost seamless
+ good pick for main instrument.
+ the flute(?) behind it was a good accent to it.