I think you are using quite a bit too much rubato. The "improvisational" nature of your interpretation doesn't fit the nature of piece very well. Quit changing the tempo like that, and keep it at a constant tempo. Careful of the notes in the second section, I hear way too many pianists just kinda gloss over these notes because of the relative difficulty compared to the first section. Slow it down, try to keep a more constant tempo, and make sure those notes are correct.