It's rather fun in motion but it's a bit jarring when it pops out of shot and we are back to gray.
I thought it might be cool if Vader did a Darth Maul and revealed himself to Obi-Wan from behind an opening set of blast doors but I can't seem to find a set to do the trick.
Another thing that might be interesting is with a structure as large as the Death Star there would be internal weather so it might be interesting to see some clouds in these artificial canyons.