I like the dark gray, which is what I was going to suggest, but you've already bought it! The pillow looks good too, but you could also have gone with a soft gold, which might be hard to find. If you can get an ottoman in a matching fabric I'd go for it. Especially if you read or relax in this room a lot.

I do think Macy's has a lot of great bedding. I also do believe in most cases you get what you pay for with bedding. Nice thing about Macy's is there are often a lot of reviews so you can read what others say. Depends on if you want a more relaxed look such as some linen fabric or cotton or.... I personally have all white sheets in every room of my house. I'm more a fan of a neutral bed and if I choose I can add some pillows with texture or some pattern and rotate if I like and I'm not stuck with a busy duvet cover or comforter that is dictating my toss pillow(s) or throw. textures, but monochromatic... you could introduce some blues easily and this bed has too many pillows. Yes, I do like toss pillows and have a large basket next to the bed to pop them in to... I don't have this many however. This is also pretty with white sheets and the blue would pair well with Gray and if you did a blue dresser it would be pretty as well. I'd add some blue tones. I like the second bed, but personally prefer neutrals as I said with bring in a bit of blue in your case or a color you think may pair well with your wall paint and bed. I don't like making a commitment (personally) to a lot of pattern as I can't switch it up easily. Pottery Barn has some nice bedding as well. I am always cognizant of my mattress size as I hate the fitted corners popping up so love them to be a deeper pocket. Given the styles above do you favor something in more neutrals you can add some color to and you can rotate pillows and a throw a couple times of year for a new look or something more like the second photo?

Do you have a rug? Do you want to stay in the black/gray/white scheme or are you open to color? Also that is more loveseat than couch and because of the small size I think I would skip pillows and use a throw for color. The throw won't have to be moved every time someone wants to sit down

In this array you’re presenting, I do NOT like goldy mustardy color chair. I do like both the blue/ green & aqua chairs. I like the lighter aqua chair the best. It seems to pair better with sofa & rug tones. I see that combo with stong colors in wall art, coordinating throw for sofa & throw pillows with texture like the rug has.