excellent concept
the only criticism is the length of the pieces -- to really enjoy the music and visuals, you need to use more of the music. I know that makes it more complex, so it's not a huge criticism.
it is visually appealing and flows very well -- the transitions should perhaps be less business-like, maybe each piece "fading" into the next..
very well done. Bartok and Brahms on the same piece, very unusual!