Hang on. What are you doing for backsplash and where IS the wall space in the straight-on kitchen picture, which you want to paint? I'm picturing all backsplash, and it looks like the kitchen is off in a corner, which changes the question a little (and takes the kitchen picture out of the equation). Lovely kitchen and home! You have the dark island, counter tops and floors which ground the space. Go light, definitely with your backsplash. Key question to me is, what will be seen, from where? If kitchen is off separate, then it will matter less what color you select in adjacent room(s). We used BM Aura Vancouver Day in the pantry and breakfast area (a grey blue). This did not work with our creamy white cabinets/Torquay quartz/Cherry islands (too blue and the wrong one). BM Aura Shimmer blends nicely. (A white with presence, do like it). Good luck and I'll look forward to seeing progress pictures.

This is quite a coincidence, but my dining room and kitchen (which were both small rooms, semi-open to each other) used to be Grey Mirage with China White trim. I painted the ceiling the same as the wall color (or maybe it was one shade lighter, I can't remember now) and never regretted it. It's such a pale color, you'll barely notice that the ceiling isn't white, IMO. In fact, after we had the ceiling painted, DH came home and said "I thought the ceiling wasn't going to be white?"

Sounds like it will be pretty. I've not used those colors, but have used White Dove on all my crown, baseboards and molding inside my trey ceilings and it's really pretty. I like having a contrasting color on the ceiling from the wall. Sounds like what you have will be nice. It's always difficult to really know until you put it up there. Colors will change with lights on, time of day, etc....

I came across this article from Architectural Digest and I think it answers all your questions. Eider White with Repose Gray with Bright White for ceilings and woodwork and Dovetail for the adjoing room. Kitchen has your colors in reverse, but none the less it is truly professional help from a respected publication: https://www.architecturaldigest.com/gallery/what-not-to-do-with-monochromatic-paint-and-decor