Have you considered using kk650’s semi-specialized edition as a base for ESB? I know earlier versions of his work on the OT skewed pretty yellow but the latest 2.6 version looks about as good as a blanket color-correction on ESB will ever look. I don’t think it’s possible to do much better without going shot-by-shot like Adywan.
As an added bonus, all you really need to do on that version is swap out the wampa scene and adywan’s emperor. The rest is already done.
What happened to kk650? He’s been gone for almost a year and I’ve tried private messaging him for some of the color regrades he’s produced.