My only reservation is the new music when they are approaching the ship on the Death Star. I'd loose it.
The work you're doing is outstanding, just try to keep some perspective and let's not fall into the trap of changing things simply because you can, or want to have a longer list of "new stuff."
As you get closer to finalizing, take a step back and anything that doesn't improve the movie, fix an obvious mistake or looks PERFECT should go.
You are well on the way to a project that looks as good (if not better) than something LFL would have done - if you have even ONE shot in there that isn't as good as the rest, it will bring the whole thing down with it.
For what it's worth, I'm a professional CG artist (I work on Galactica) and my friends and I agree what you are doing is outstanding - just be sure every change you make is as good as the one before it; anything that stands out as a weak link should either be fixed, of if it can't be done right, no matter how cool the concept is, leave it out.
Come to LA and we'll set a screening for ya!