A bit underrated!
Although it is not a particularly memorable tune, it is a bit underrated!
Technical Aspect: Not much to comment on here, the mixing was pretty average, In other words, nothing wrong with it. Not many effects, but none are really needed in this piece, reverb would have destroyed this piece.
Artistic Aspect: What you pulled off is actually pretty hard to do with the piano, have two almost completely contrasting piano parts come together to form the melody. It's not something easily accomplished. That being said, it doesn't come all that well together here, but the concept is there, which I happen to like.
Overall: An average piece, attempted a pretty difficult "fugue" kind of piece, and almost accomplished! (Another example of this kind of piece would be something like the haunted mansions in Super Mario World)
4/8'd, it's there, but not completely