This melody suits the piano a lot. I enjoy playing it on the harp as well. I like the arrangement, although I feel it's lacking a bit of emotion. Perhaps it could be performed with a bit more dynamics, a lot of the notes feel a bit similar. I think performing it free-time as it's a solo arrangement would also help and really allow the beauty of the arrangement to shine. Good job :)
Edit:
@TheMusicGod-27 thanks for the correction :)