Pretty piano...
Don't here too much of this sort of thing on here, so it's a refreshing change of pace. You really could have this sort of thing playing in the background all day without every tiring of it.
The performance is pretty good, although it sounds a little stiff in some areas. Remember, it's a piano, so if any area has a static dynamic it's noticeable (in a bad way). You're very good about it overall, but there are a few spots that could be better, in that regard. Yay for nitpicking.
The harmonies are very sweet tasting, especially when there are clusters. The motion could use less root motion, but that's very mellow, due to the arpeggios. The end harmony is especially tasty.
The open sound really suits it, overall. I would like to hear more from you. When you write your next piece, experiment with the lower ends of the piano, since they can produce pretty music, too ;)