I just listened to this after seeing awesome_o's link to your recording, and I have to say:
BRAVO!!!
This is really quite heroic, and besides the many wonderful musical ideas you have I deeply admire your manual command of the piece - for now I can only dream of playing this in a such an authoritative way, especially in a live performance. Again, please take a minute and be proud! (and then, back to practise

).
When listening I noticed a couple of very minor things which may be entirely based on my current conception of the piece, but I'm just sharing these in case it may be useful:
m41: For my taste, too fast and intense (this section starts and ends in piano, and even though it's "piu mosse", there is the addition "ma misurato").
m131: (return of theme before d major part) The LH arpeggios carry a bit too much weight for my taste and if I remember correctly you played the two 16ths simultaneously which is not what Busoni wrote here.
m166: starts already too strongly, I would leave more room to space out the long "sempre piu cresc." from 166 to 182.
m222: maybe a bit softer (dolcissimo)
m230: softer and calmer (doce tranquillo, sempre pp). Especially the 3rd quarter with the 32ths is not tranquillo at all.
m246: it seems to me you put the main emphasis on the LH(?); I would emphasize more the RH.
Again, please don't misunderstand. These are just observations I wanted to share out of curiosity. There are so many different ways to play this convincingly (and in many spots I have the exact same conception as you I think...ony I can't play it so well!).