I've updated the screenshots at the top now with the latest settings.
I did find a balance which enhanced the faces and stuff a bit without clipping whites.
This is how Tarkin looks now, raw GOUT compared to my settings:
The reason he comes out different compared to Harmy's version is of course the source which looks very different. And since I'm making settings for the whole movie I can't pick elements out and color separately.
Here's some more comparisons:
I know the colors are a bit strong in the sunset scene, and I'll see what I can do about it with some adjustments later.