The mood of this song reminded me of "Waltz for One" from the Shovel Knight expansion: Plague of Shadows https://www.youtube.com/watch?v=x3hPuDaIQoA It's a really good song and an even better game.
I think if you add
-a little bit more repeating patterns
-more rhythmic variation just like the person below suggested
it can be a lot better. I hope you get inspiration from the video I linked ;)