In short, I like this song. I like your panning decisions - starting with wide-panned synth arpeggios, mid-panned percussion, floating piano off to the left, etc. I also like your EQ decisions - a nice mix of sharp and dull instrument sounds. Your arrangement had enough changes to keep me interested, and enough repetition to put me into a pleasant trance, and evolved from simple and orderly to more complex and chaotic as the song progresses. I can't really find anything to criticize, other than the fact that it would have been helpful if you had written a few words explaining why you posted the song and what kind of feedback you are looking for!