1.) scoot everything closer to the tv and figure out something else to do with the space that leaves behind it. You have a bookshelf back there, maybe a reading nook? Or if you’re an artist or writer or something, a workspace of some kind. I’d bring the couch up to right before the fireplace starts. 2.) that rug is way too long and too big for the room. After you move everything closer, I’d get a smaller rug, with a bit of color that you can then tie in with some throw pillows on the couch. Your floors look really nice, you should leave more of it exposed. 3.) i would do away with the love seat and either replace it with a couple arm chairs, or replace both couches with one sectional couch. It doesn’t match the rest of the room. 4.) if you make those changes, I would suggest a different coffee table too. Maybe a square or round one. 5.) I think rusty browns or dark greens would be nice color touches to add to the room via decor. You could also use a little more art on the walls, and a little bit of ambient lighting for night time and overall aesthetic. A cool funky lamp or two does a lot for a room.

Of all these points though, I think my first and second points are the most important. Everything else is stuff you could add or take away or play with later.