This is turning into my favorite edit so far! I've always had a mental block when it came to the Prequals coming before the Original Trilogy relating to time. It was two shiny, clean, and modern to actually believe it took place before the events of Luke, Han, and Leia. Now it is more of a dream or vision, as if this is what Obi-wan is visualizing when he's describing the clone wars. It forces the issue that this takes place in the past, at least for me, and that short clip proved it.
I do like the colored filter look too, very much. Just like newspaper changes color when it get's old, black and white is too clean. In fact, I would not object to the yellow filter, the whole way through, but I know you are planning to change the tint depending on the scene.