Took a few screens:
So far i feel mostly MEH on the new 4K versions. Like the 2004 Lowry master they went too far - this time in the opposite direction - with the new color grading. For example, Lukes stromtrooper armor looks greenish/yellow to me. Most of the other 4K screencaps i saw in several threads also suffer from this yellow-ish tint along with washed-out almost monochromatic colors. Very strange.
The new colors are vast improvement over Lowry artificial pallets. Luke’s uniform wouldn’t be white inside interior lit with yellow light. It is more or less natural.
You can get washed-out monochromatic colors but that is because screenshots made wrong, without HDR tone mapping. Screenshots above are fine. They are true to what is on new discs.