I'm working on some of Op.15 myself, but I although I recognise the piece, it's not one of those, which is confusing. Anyway, and I fully understand that should I finally bring myself to post one of my efforts here at some point I may pay for this, it sounded a little lumpy. Not sure if that's to do with notes not going down quite together, phrasing, tempo or balance between the volume of each note. Keep going though, because it could definitely come together with a little work. What does your teacher think?