I think you have the right overall idea for the piece! My main piece of feedback would echo the comment you got on the Polonaise Op. 44. I'd focus on working on feeling physically at ease and relaxed at the piano. It looks like you are tensing up quite a bit, and though that can give you a feeling of being more in control, it actually just hinders you from expressing yourself exactly how you want. It should really feel very comfortable to sit at the piano and play.