Well, the first thing I notice is all the sudden I'm plunged into this track hahahaha, but it is a nice plunge...the end is not so nice of a sudden plunge though. And I also hear the rhythm is not really consistent. I'm assuming this was being recorded in real time, and I understand that the genuine feel of real time is something commendable, but really keeping to a set rhythm would help the flow and not make it sound like stomping feet up some stairs. I would also note that the arpeggios aren't very dynamic, but for an ambient piece like this I don't think that's too necessary. I did like a bunch of things. The note choice is mystical, sounds like you're ascending in key signatures. The sound choice is nice, this piano something combo is very nice and the background synth underlying it all is really magical. The transitions from place to place are also nicely connected, I can hear you've got a slight ritard right before the next phrase. What this piece lacks is more musicality. Arpeggios are nice, but as a constant theme it gets tiring to me, and as mentioned before the rhythm. Pretty good idea here, just needs details tightened. Nice job!