The mixing is very quiet. I suggest using compression/limiting and/or some normalizing so the listener doesn't have to change the volume for this specific piece.
I wish you put in the description your thought process and intent when you created this piece. It can make the piece more cohesive and as a reviewer I can provide better feedback, based on how clear I thought your intent came across rather than simply my own taste. That, and I can rate your piece more accurately.
My opinion is I like this song and it's not something I typically hear on NG. As it is, that's about all I can say.
More info about how I review music here: https://codefreq.newgrounds.com/news/post/1089806