Great stuff! Lots of interesting dynamics!
This is a really nice improv piece, I like how the piece slowly flows between different styles of playing, and the extensive use of the damping/sostenuto adds a really nice, fresh sounding change of pace throughout. The soft, contemplative leadout was a great way to cap the whole thing off.
Once again you've managed to create solo piano music that somehow doesn't bore me. Not sure how you do it, man, but keep it up, your playing ability is killer.
Cheers,
Daniel