OK so yeah, this is what i mean:

Now, I think the shadows might be a bit to dark, but that might be a side effect of how they produced such a the HD image from old film reals. That aside if you look at Adywan’s colour grade you can see how the lights behind the emperor are a yellow white while the diffused light bouncing of the ship is tinted blue. I believe this is because they actually had blue-white lighting on set for this movie, rather than the yellower lights that most movie sets used back in the 70s.
So (correct me if I’m wrong) but this shows that the regrade might be slightly over done, as the lights should not have a yellow tint if they are producing a blue glow. Also the 4K83 is based directly off of original film copies so if there is any accurate grading out there, I would say it is the 4K83.
I hope this is helpful and seen as constructive criticism, and I feel like this can’t be said enough but good luck Ady and I hope you’re having fun.