Hi Paul,
Beautiful performance - you are really leading professional digital orchestration to new levels. I think, that we are just at the beginning of using digital techniques for orchestral based "Neue Musik" and their "grandfathers". I still would like to see more music of contemporary composers like Luigi Nono or Pierre Boulez in the demo section. I think you covered the spirit of Webern extremely well.
So if I am allowed of beckmessering, the "location" of some strings seems not right. I have the feeling, they go from the "left" position (on headphones) (which seems right in terms of orchestra seating) to the right side in the background. Some pizzicato for example seems to be on wrong location, not blending with the rest. I don't have the score in front of me, so I cannot tell offhand, which section of the strings seems to irritate me.
But again, beautifull arrangement, great conducted - more of "Neue Musik". There are always "3B'ees" , who think that classical music only consists of Bach, Beethoven and Brahms. I personally think, that we should have our ears wide open for everything.
Have fun
-h