Harmy, I watched your DeEd-v2.0-WP2.3 workprint. Sadly I had no time to watch this earlier.
One thing I noticed is at 20:46, the scene after Biggs' fighter explodes the movie stucks for one frame or so. This happens when the fighter explodes and then in the next scene where Leia appears on the screen on Yavin, the timecode is 20:48 exactly when this happens. Maybe it has be something to do with the editing process and can be fixed???
The rest of this looks brilliant IMO.