ambient, for sure, but almost d&b?
its almost drum and bass ambience... dj_con has a point, though, there are parts that feel... out of sync almost. i think there might just be a little too much drum, or too much of the same drum. maybe try deepening the drums and slowing the down, maybe throw in another bass drum sample on occasion. :)
other than that little tidbit, this is some beautifull ambient, good work!