Great piano at the beginning, and I love that buildup. The beat that comes around 0:34 is good, I'm not too crazy about it but is nice. Like the use of the piano throughout the song, and overall it gets this nice relaxed feeling to it.
I really love those buildups then drops you have, especially at the end, great ending.
Nice song, hope you try to do some more in this category of music so you get more comfortable with it.