This is such a beautiful prelude, and as always, you're great with Rach.
At this point, everything I say is simply personal taste (because you play it perfectly fine). I'd play it a bit slower, enjoy it more... Especially the richer chords. Also, during the climax, don't be afraid to go all out dynamically.
Guess my general advice is bringing out more of the romantic side. This is such a moving piece, use it to your advantage!
But like I said, great job!