Simply nice, the melody naturally harmonized is beautiful. But, there are some little weird chord melody on 01:51. If you unless it was intentionally used melody there, should be fix for it.
The piano volume balance is also good.
And, although it is a personal opinion, I hope that this song has a little more reeverb effect. Then this piano sound will be more richer.
Overall, it's really good piece one.
Keep it up!
p.s : change genre - "solo instrument"