Good job on your recent mock-ups Angel. To choose a set that would look amazing in ROTJ:R, I would go for all the dark looking ones, like the Luke and Vader walking up the staircase and the other dark looking shots of Vader looking for Luke etc.

I like how the darkness encompasses the throne room and it emphasises that the Emperor is a really dark being who lives in the shadows. It's perfect. Yoda even says that 'the domain of evil' is something that is very dark (Bingowings mentioned something along the same lines). The lights on the panels add to the atmosphere and I have to admit that ROTJ does have quite boring cinematography and design. It would make sense to go further and add some much needed darkness to the Emperor's throne room and then everything else can tie neatly into it - like the corrected lightsabers and starfield etc.

The force-fielded binders (ala. ROTS) is also a very neat idea; I'm all for that. And it goes without saying that we should see the forest moon of Endor in the background - even with some lighting effects if that is possible.