My comment won't go down well although it's sincerely meant. For a start, the movement is too fast. Secondly, highly pianistic, reliant on the percussive "envelope" of piano tone. Too easily here, the orchestra or orchestration cloy up, removing any feeling of delicacy for me, especially when brass came blasting in. Sure, it's a sustained piece but the sustaining is done by the decay-release of the piano itself.
Thirdly, if Beethoven had wanted to write it for an orchestra he would have done, was perfectly capable.
When I clicked on the MP3 I realised you'd only done the first movement. I was wondering what you'd make of the third movement. It seems more susceptible to instrumentation than this one.
I really appreciate that Beethoven's piano music is bait for rearrangement. During such student days as I had, up came a couple of excerpts. But the Op 27 Sonata is probably among the most difficult to bring off.