I don't hear much songs without any percussion that aren't classical, but this one was very unusually interesting. The feeling it gave me was kind of just being lost in space, slowly floating away from the space ship. Not necessarily sad, but thoughtful and maybe a little melancholy, yet beautiful at the same time. By using so little instruments but giving them beautiful melodies, you kind of create this one of a kind, magical atmosphere that is unique to your song. Experimenting with stuff in music is almost always rewarding haha. Great work, keep it up!