I like the idea behind it. I do think it could be improved in a lot of ways personally.
Maybe add a quiet, yet rich bassline. Something full and robust, and that has a very soft attack. And keep it low in the mix. I think it would really add a new dimension to this piece.
Also, changing the melody instrument here and there is always a good idea. Although, I do love the main instrument you are using in this song. It has a very interesting timbre.
You should add some piano to it as well. To emphasize the chords. I would really like to hear what that sounds like.
It is really short. You should triple the length, at the least. It is far to short.
But this is not a half bad little tune. Despite how short and simple it is.
3/5 and 6/10 overall. Nice work here.
Best of luck on future projects bud.