I would paint the entire fireplace including the mantel, all trim and shelving white. I like the Whisper White, but you must bring the paint samples into the room to see for yourself. The sheen on all woodwork should be semi-gloss, easy cleaning and looks crisp. I agree with painting the walls and I would paint the part above the mantel the same color as the walls, Summer Hue is beautiful, but once again I have no idea how that would look in your room. The walls should be flat most brands make a fairly easy to clean flat. If the fireplace were the focal point of the room, it could look very cool and dramatic to paint it a very dark gray almost black. But at least in this picture it seems that the entertainment/shelving unit is the focal point. hmm .... better stop while I am ahead.

Leather sofas can really dominate the room and can give an overall cold feeling. I would add some earthy elements, like a wood coffee table with glass or metal. Go to Restoration Hardware's website and look at their sofa room scenes. And I'm sorry I think the art is too harsh for the room. That's all your eye goes to in the room. too overpowering. I would look for something softer or maybe a cool mirror and I would add color to the room with pillows and some colorful lamps. I also think woven blinds would look great. They add warmth and give a finished look. The color of your window treatments should contrast your wall color a bit, not match it or else it starts to look generic and blah.. You have warm walls, warm floors and the woven blinds, like Hunter Douglas brand would pull it all together for you.

I would take away those top arches and have builtins either side of fireplace, have the tv placed on a shelf on the built in, like in the pics, you don't have to have it above the fireplace, if room is small it will feel like it's coming at you lol. Panel above fireplace and hang some artwork or a nice mirror. Quiet like the builtins with the back wall painted

I like the room but it looks a bit empty. Possibly some contemporary low interesting cabinet on either side of the fireplace some organic baskets or metal vessels of some sort on top of the cabinets. It will fill in the bareness between cabinet and sconces. Roll down textured shades at the windows would add a nice fill in touch and add privacy and block light. Or simple linen floor to ceiling curtains on rods at ceiling height. Here are three rooms with free standing cabinets and long curtains at the windows. You might like these ideas for not. Art work could be under the scones with lamp for ambient lighting Again simeple cabinets and surprise, a TV stand too. This is a lovely idea too with the twigs; could change seasonally. I like the benches for warmth and texture and softness and the chandelier adds a dramatic touch. Good luck with your lovely room!