Hmmmm, some good food for thought. Thank you, I'm glad you enjoyed it
It's difficult to say where you should improve, but here's a kind of trick, I guess. I just thought of now, so there's probably a better way somebody else thought of: what about the rhythm? How do you get away from feeling sometimes "stuck" to basic meter? (Like everyone has, especially on slower pieces or hymns, or in Bach).In my opinion, you can try thinking about what's called the "pulse" of the piece.