Thank you both! I’m intrigued by the idea of having the tv across from the windows. If it helps, we are planning on installing cellular shades this weekend and adding curtains down the road once we figure out the furniture. Groveraxle, if we have the tv on the back wall, do you think we could put a book shelf on the wall between the two windows or no?

Why not put a pair of comfy armchairs flanking the fireplace? Style the shelves with 1/3 books, 1/3 large decor items and 1/3 open space. Are there any outlets there for lighting? Put TV on the long wall where the black chair is. Set it on a credenza 25% wider than the TV. Float a small scale sofa perpendicular to the stair and fireplace with a coffee table in front of it. Put a console or sofa table on the wall behind the sofa with two lamps and art. Leave a 30" traffic path between sofa and table if possible. Art 5" above the mantle no wider than the firebox opening. No need for a ceiling fixture; just upgrade lighting to 4000K LEDs for daylight feeling night or day. Is there lighting in the stairwell? It needs some. Straight leg chairs will be best because splayed legs will block the traffic path and be hazardous. Not sure an egg chair will work there but its fun. Too tall and big I think. Go for a low profile like the green one and you can fit a pair of them in.

What if you made a music "room" at one end: Placed a semi-circle sofa to follow the curve of the floor at the other end:

I'll show you pics, you see what you like. The sectional is way too big for that space. If you can, replace it w/a sofa, maybe a few chairs. I'll show you examples. this size might be better. notice how they did the window treatments too another sofa idea,,,,something w/a chaise at one end, lower back pillows I like your console. tv is going over it? If not, here some ideas you can do w/it. some colors and a smaller sofa that work w/the teal. grays/white/gold/wood tones, light rug What about this look? sofa, accent chair, light rug, and some art that bring in the teal colors Bring in some art that has the same colors. like this one: or maybe you like more rustic? you could try something like this behind the console. I'd place two sofas face to face w/the console in the middle. see how this one is laid out? like this. pretend your window is behind the gray sofa. Look at Article for similar chairs like these. Check out their Sven sofa. lots of styles/colors. I have one of them something diff for the media wall. (move the turquoise cabinet over in the corner by the front door entry.) some lighter colors. do a shaggy white area rug and the lighter blue colors shown here This size sofa might work. notice the artwork and plants around the media cabinet https://www.maisondepax.com/designing-small-living-room-with-large-sectional/ Or, if you like the darker tones, try a sofa in a deep velvet peacock shade and this rug https://www.rugs-direct.com/Store/nav/Category-Area-Rugs-Brand-Loloi-Rugs or, can you position a sofa like this, against the large back wall? pretend your large windows are these two smaller ones: basic guide for furniture layout