That tv corner is awkward. Can you get high, corner piece, that is light and airy, and more contemporary. Something you can put the tv on, and the tv could have a cabinet underneath, and maybe a couple of shelves above. I do think that it should white, and modern . The corner looks bottom heavy, and white or some other light color that is close to the wall color would look much better. The windows look nice and clean, and let the natural light in. At most i might put a mesh shade in the a color close to the wall color, or something in a natural bamboo look. I can't see what is on the leather chairs, but they could use a pillow, maybe in bright mongolian lamb, ( they have many on this website for sale ), but I would keep the backgrounds of the room, which means basically, the floor and walls ( which forms an envelope ), and bring in color on the pillows, or throw, and art work that is either black and white photography, or high color art work, that shows up somewhat solid. Nothing faded, or feminine. The room has good bones, and it needs strength.

Hi, you have a nice space to start your projects. Do you need the built-ins? In the photo it looks like they are interfering with your electric heat, your air conditioning unit and they seem a bit flimsy and busy. If you don't have a large book collection, I would take them down. I would look at medium toned wood look laminates, not too busy. You have to choose something that won't clash with your tile and with your different wood tones - trim, the beams and kitchen cabinets wood tones. Definitely bring home samples to look at in you light and space. All neutrals have undertones and the undertones can clash.

Let's have a picture of them in place, in your dining room.

To maximize your space the bench should remain on the wall side, with people sitting there, be sure anything you hang is high enough. Your table and new chandy--very different vibes. Glad you are swapping out the long shag carpet. Under a dining space I would go with nothing but the flatter the better for chairs moving, food collecting. Sorry but I would rethink the gray. You need something that brings life to the space and gray will do the opposite. Once you find proper curtain panels it may change what you want to hand on the walls. Nothing looks cheaper than slatted blinds. The panels can add a lot of softness and movement to your room if you choose a pattern. Then you can pull the lightest color from the curtains to put on the wall.