Have you done much practicing with a metronome? The tempo changes pretty drastically from one section to another. Also, in my opinion, you may want to lay off the pedal a bit. As you increase the tempo, some passages will start to sound pretty muddy with that much pedal. Otherwise, you seem to have a good start! It's a very challenging piece.
"you may want to lay off the pedal a bit" - I have a quiestion about pedal in this piece. Somebody says that the piece need lots of half pedaling, somebody says(as my teacher too), that play the piece without any pedal.Which is true?