Do you want to stick to neutrals? Or, if you threw caution to the wind which colour would you add to your living space? Need a starting point to give better advice. Cheers, KA

Neutrals would be perfect. We were thinking to color the whole house in wind or plateau, but it would be really boring, right? Or it will work?

Sorry not familiar with a Behr but the colour plateau seems a bit peachy. Try Benjamin Moore -CC 500. It's cooler and more towards the browns.

Work your way through your home using shades (dark colors) and tints (light colors) from the same color strip card. Deeper colors for well lighted spaces, mid-tones for average lighted rooms, and very light tints in halls, closets and baths. You can even use the very lightest color on the card (cut with 50% white) for ceilings. Not boring!

Hi. Help me get it - your photos of kitchen and brown-sofa room are the same color? [just doesn't look like it on mine] Is it peachy or yellowish?
Is the wood flooring stain exactly the same in both areas? thanks.
Don't know if you need art over couch or fireplace - this might be just a bit busy with rug, an idea:

Art idea over large ivory chair:

DINING:The dining/ling areas look a bit darker than pearl gray to me and I like them, with such an open scheme, I would keep the same color on all the walls, perhaps changing the tint. Push plant into corner. Paint the bookshelf med. aqua and center it on that wall, add chair seats of the similar aqua. Put a table runner - white with aqua ink sketch design runner on table.
KITCHEN: Move pots to above microwave cabinets and add a third pot there, so it displays as more of a collection. Get rid of plant above sink and the excess of fluffy curtains.. Add new Roman shades, above sink, hung high on window - even with cabinet tops.
LIVING: All the wall ornaments are far too small in the living room. Replace with a large painting above sofa and fireplace and any other big wall. Don't buy one of those big box cheap looking prints. Buy a canvas, paint it all white, then slap or throw some paint of your colors at it. Include your wall, aqua and rug colors. Just use wall or house paint and a two-three inch brush. Or paint some sort of pic, any will be far better than the print and you will take more pride in it. One friend, in a large art community, put a bit of color on canvas and drove through it 3 time with his bike and got scads of compliments. Use your imagination. Have fun.

love that about bike-riding art lol.

Thank you for helpful advice. Color of the walls on the kitchen / room with brown sofa is the same and it does look a bit peachy, kitchen has white/beige tiles, and room with brown sofa same hardwood as dining/living room. Definitely will use another shade from same color strip card as our dining/family room. Thanks a lot for advice for the art pieces, they look great.