Take a look at this frame:
Looking at the references I have, and being conservative with saturation I would place this shot about here:
Bottom pic looks like teal mess. Sure, the colors could pop a little more on the screenshots from the last page, but I prefer them and they look pretty filmic to me. Sure, it’s not Technicolor but it’s easily the best how these have looked officially. That 2001 pic looks a little too over-processed color-wise.
There is no overabundance of teal in the bottom shot, a little too much green perhaps. The Death Star walls are a light blue for 35mm prints. Just for comparison here’s Puggo’s preservation of the 16mm print for this shot (which has a bit more green in it than my correction):
Having seen ROTJ recently on the big screen in a private screening, I can confirm the light blue color is accurate for these scenes, even if it’s not as saturated and contrasty as seen on a 16mm copy of a 35mm source. The frame I posted is pretty close in terms of hues, I would say. Correcting the slight greenish tone I get this:
Boosting the saturation of both frames, it’s pretty clear the new 4K master is heavy on the magenta tones for this shot:
