Okay, Rugknots is selling those things, but I think her advice is fine. See how lovely the picture above is. Too bad you already have a rug. Fun thing is the grey chair at the dining room table. To prevent it from becoming too predictable. How lovely is the view outside? I mean, is it over the top lovely so you have to see it all the time? Or could you place a not too big sectional in the current TV corner and place your TV on the opposite wall, where the brown couch is now? A chair diagonal like the brown one here, but closer to the sectional would allow for conversation. I'd keep the coffee table light and airy, like a glass one, since this space is not that big. Small end tables for some beautiful, but airy lamps. Perhaps an accent color (or two) in artwork, pillows, vases.

Show us the wall where the TV will go. Post picture here in comments. What are the dimensions of the room? Look for a console for under the TV that is at least 25% wider than TV. Also make sure TV is mounted at proper height for watching when seated

Lovely room! How many do you need to seat? and for what purpose? Theresa, I love those pillows, but I can’t see them with gray walls. Re: images of rooms you posted, the style of the chairs in the first image is really cool. Some black in the room, as suggested by Nicole, would be really sharp! Maureen, I agree with your advice for OP to look at [a lot] of photos with curved sofa for inspiration. Eager to see some of those images. This is going to be beautiful!

No loveseats ever next to sectionals the biggest waste of money for seating. We need info , what is your style, how many seats are nessessary, Is there a TV going in the space. Are those builins on the wall to the left of the window , do you need those shelves along the kitchen wall So many questions we need ansers for befor eeven beginning to give advice as to style and pieces. I will say I usually start with a sofa I love