I really enjoyed this, especially the overall mood just felt very nice. I can feel the bittersweetness throughout, especially with the refrain. It is very simple but very effective in its overall shape/contour. Sonically, it is pretty consistent, so it might need some help from other timbres to help give it a fuller sound. Though, if you did want to keep it on just piano, you could definitely experiment in some of the outer (lower/higher) ranges. Overall though, I really did enjoy this, and reading the description afterwards felt very apt.