May I suggest a cap of your pavers on the wall and the a slightly darker gray that relates to the privacy fence beyond? That way horizontal surfaces and vertical surfaces show similarities and blends/blurs the separations?

I would try the Woodcliff Lake, it has a warmer tone than the lighter greys.

Small all in one condo room not sure what color to use for walls after removing wallpaper

Looking at the bench , I assume that aged look is what you are going for ? How artistic are you ? I'm thinking you'd carry on in a similar vein -- paint the trim in white , but while its still damp ( so within say 30 minutes ) dab on some off-white and even buttery cream , using a sponge , in a bit of a 'rub' pattern . Likewise , I quite like the faded blue jeans look on the sill -- thats a bit harder to do , but maybe a cream base , then thin the blue with turps or water , and also sponge it on , but basically in solid rubs , like you were nuggetting your shoes .