Lack of dynamic contrast is maybe do to the fact that the original hasn't got lot of dynamic contrast neither. I tried to stay close to the original, but with a touch of my own fantasy.
And about the Piano sample... It is in fact my very own piano you hear playing. Okay, it's a digital Roland, but the key's are sampled note by note. On top of that, I've played on a lot of different Grands, and this one sounds most like a Steinway, which is naturally, because the the samples are of a Steinway's.
And @ the fortissimo guy: I'm sorry, but my piano wouldn't go any louder without clipping the audio, and if I recorded too soft, there was a lot of noise when I raised the amplitude.