Almost superb.
I like this piece, I really do, but I have to state that the opening chord is a true killer for this piece... You have such a wonderful feel going through the entire rest of the piece, that I think that, if you simply cut that opening chord out, this piece would be almost perfect.
I'm glad you put that chord in the beginning, though... Nothing is more shocking after listening to a piece like this, than a sudden and jarring cacophony right at the end.