How much seating do you need on a regular basis? I would be inclined to get a leather couch, that would sit to the left of the fireplace, facing the dining area. Sofa table behind the couch, with lamps. Nesting tables at the fireplace end, to be used as needed. Opposite, on the right side of the fireplace, a pair of chairs that recline. No ottomans, as I see that being an obstacle for your son. The recliners let you put your feet up as desired, but are not in the way the rest of the time. A nice table and lamp between the two chairs. No coffeetable needed. The tv moves to the stairway wall, where the couch is now. Wall mounted or on an entertainment stand. If there is room for the bookcase beside it, fine, but I have a feeling that wonâÂÂt work, in part because I believe I see the thermostat there. In that case, you could put another chair against the wall for extra seating. with a wall-mounted swing arm lamp beside it, and a narrow table next to it. I wouldnâÂÂt necessarily drywall in the space over the fireplace - it could be a cool display niche, especially if you could add some lighting into the top of it.

how about moving the couch up further so it gaps the space to your TV? you can walk behind the couch, put a nice console behind the couch and add more decor to it. also i would move the couch away from the windows so it is more centered with the painting on the wall.

Placing a couch centered on the fireplace is going to leave little room to walk thru that area....but maybe that's ok... I really don't know. Unless you replace your current furniture with new pieces that are about the same size, and in the same place, you may be changing the traffic paths in the room. That's why, once you have an idea of what you want, you should move your existing furniture to the way it will be in the future, so that you will know whether you like the new arrangement, before you commit. 30 feet is long, but 13 feet is not really a narrow space for a living room. It's pretty normal. My guess is that your house originally had 2 rooms side by side in that space. If you think the space is tight, look for chairs and sofas that are not as deep, back to front. There can be a big difference. Your brown recliner is very deep. Apartment style furniture can be just as comfortable. Having a foot of padding at the back of a chair doesn't really make it more comfortable - it's just a style. You don't sink back a foot when you sit down. Here is my mock up of where the traffic path would be if you have a U shaped conversation area in front of the fireplace and TV. I gave you an ottoman instead of a coffee table in front of the sofa. And I made the upholstered furniture about 4 feet deep.

You need some yellow, lime green, peach sherbert, or dusty rose colors, maybe some rust or some terra cotta, ...And some sage green perhaps. Go get yourself some live flower arrangements, solid tones over a couple of weeks from the grocery or big box stores, and see what makes you happy? Than find you some toss pillows, pictures of rural or city scapes, maybe watercolors paintings? would add softness to the walls, and maybe a throw or 2, and see what happens? From there you might find some pretty window sheers with a very soft muted pattern in your most liked hues to cover the shutters and add some additional softness. https://www.wayfair.com/George-Oliver--City-Views-I-MultiPiece-Image-on-Wrapped-Canvas-GOLV2725-L1318-K~GOLV2725.html?refid=GX248928943619-GOLV2725_23818572&device=c&ptid=474119018077&network=g&targetid=pla-474119018077&channel=GooglePLA&ireid=62140174&fdid=1817&PiID%5B%5D=23818572&gclid=Cj0KCQjwz8bsBRC6ARIsAEyNnvq6Ya3WRI0ArXrPtOd9vi_LXHVvJLVj8JeB9-05WtuxlPSlpdzwsJMaAnIsEALw_wcB