This is very nice, haven't given this kind of music feedback before, but i'll give it a go:
First thought was that the fill-in by the drums didn't work very great, but then again it's cool that it's a little off if that was the intention.
I would really appreciate a kick drum of some sort, just to make the flow a little more obvious, but that's subjective.
The intro is incredibly relaxing, so that's cool.
