Good luck Ben, for what it's worth, I really like this one. Looking at the wav and listening, you have it nicely loud and no ear fatigue. I really like the sound of your piano. The strings sound natural for the most part but at times, during bends, it has some outer space instrument sound.
I don't think I would like it as much if you changed that. You have a great piece and a nice sounding production. You certainly put the serious effort on this one. Salute