Actually, after listening to them in sequence, I can hear how my recording and programming technique as improved.
I do intend to re-record my M&H and release a new library one of these days - this time I know how to make a crapload of velocity layers. Not sure how ambitious I will be yet, but since it's my personal piano, I re-record many times until I'm satisfied. I'm considering cloning all aspects of it, in case I sell it and get something bigger.