Nice job! Very good! I think you have a good character going for the piece, and you're doing a good job separating the melody from the accompaniment. What you could do to take it to the next level, is to work on playing the accompanying voice even softer. That gives you more ability to play with the dynamics. Sometimes, right now, you need to play the melody quite strongly (perhaps a bit too forcefully which doesn't suit the character of the piece) to make it heard over the accompaniment. With a softer accompaniment, you could either choose to play the melody a bit softer as a well, while still keeping the two voices well separated, or get a softer effect just from the fact that the accompaniment is softer. You can create the effect of forte by playing melody FF, accompaniment PP, and left hand mF, for example

So in short, work on being able to play the accompaniment super soft regardless of the overall dynamic (this does not exclude playing it louder, should you choose to), and you'll get a wider range of colors and choices to play with.