how many people usually use the room? and do you prefer to sit straight or to lounge? if you mostly prefer to sit straight...and it's your main living space in the house where guests of different ages come etc..push the sofa closer to the window..(since the bookshelf is not staying)..two armchairs facing: one, the TV, another, the sofa..kinda angled, like they're having a conversation, you know? the coffee table gets to be in the middle.and you can add a side table between the chairs. maybe something round, so not everything gets to be rectangular etc. I'd definitely put TV lower either on a console ot over the console. in this scenario TV stays where it is but you get a) much better viewing angle b) storage c) simply nicely composed space. It can still swivel so you don't loose that function. The console should be longer than the TV. If the mirror stays over the sofa it needs to be lower. The rules of art and mirror placement change when they are over the furniture..they should relate to the said furniture. There are guidelines, but generally you can eyeball it ..if it looks good then it's good. If strongly prefer to lounge..then instead of sofa you can get a sectional with corner part under the window. You might be able to put a chair on the other side of the coffee table, depending on how big or small the chair is..you don't want to cramp it too much. If no space for a chair-consider switching your coffee table for an ottoman (don't match exactly to a sectional). can serve as a coffee table very easily if you have a tray on it. But can also be used for additional sitting if you have company..especially kids love these. You can have a side table on one or both sides of the sectional, depending how much space you'll have. I'd definitely add some lights. A table lamp. Or a floor lamp. These are food for specific tasks like reading or mending; they're also create pleasant ambient light. You're more in control of your lighting thus mood you want to create, and function you want to get depending on what you do, if you have different lights on diffrerent levels. I love your curtains and floors and a rug..and a dog..:) It will be a very cozy room

There would be enough space on that wall. My concerns were placing the sofa against the windows. Since the windows are very low (Down to about 1' to the ground), a 37" high sofa would block 2 feet of window height. Depending on how far into the room the sofa is, that would take 2' off of 2-4 windows. (The window location in the render is not 100% accurate, but if you look at the picture, it'll likely cover all 4 windows) In addition, those windows go to the backyard, which we would get afternoon & evening sun from. We were concerned about having a lot of glare from the sun if we put the TV opposite of the windows.

Do you see potential problems with the couch/sectional not providing a lot of space between the hallway and the room? Or perhaps I need to find smaller furniture or move the couch closer? I think the previous owners also made the room a dining room, which is why the chandelier is there. However, not pictured is our kitchen that openly connects to a room with a fireplace, and we're planning to make that room the dining area. Thank you for your opinion!

Maybe something like this?