Really nice!
This is a really nice song!
Composition-wise, this song is really good. I like it's structure and it doesn't really get boring. It could possibly use more instruments, but as it is it makes for a great duet.
Sound-wise, this song needs a lot of work. Notably the mixing is non-existent and so is the mastering. Both of which are needed to bring your song to life.
Great song! I hope to see more from you!
~Phyrnna ^_^