I'm not sure what you intend to use this room for but if it's for adult conversation while kids are in the FR then there are a couple of things I would do. Two loveseats facing each other, round coffee table and 2 swivel chairs facing the fireplace (backs to the room entrance). I can picture a tall grandfather clock angled in the corner where the chair is now. Or One loveseat facing the FP, rectangle coffee table and a swivel chair on each side of the loveseat. Then I'd place a round game table with 4 chairs in the corner where the chair is now. This is a good way to get extra seating without taking up a whole lot of room and the table is great for coffee/dessert or playing cards or games while you watch the fire. In either case, turn the rug. Your bookcases are beautiful and I'd play them up to full advantage by adding some books (artfully arranged, of course)and some greenery in colorful containers. I'd place the photo frames throughout the shelves, some sitting on side layered books for height variance so that they become unexpected and delightful interruptions from the reading material.

You could even get a piece of plywood or something and paint it the color of your wall and tack it over the landlords door...it will fade into the background. If you move, you can take it down with no problem. A couch and couple of chairs will give you lots of "decorating room" and you can make a cozy room.

Have you considered a back to back sofa arrangement? Float your two sofas back to back in the center of the room so each has a similar sized area in front of it. Give each of them a coffee table. Maybe that small clover leaf table can serve as one. They usually arrive 1" above or below the sofa seat. Try the demi-lune one in your foyer. Put your hi-boy desk in the center of the back wall and hang a knock out piece of art above it. Flank it with a pair of chairs, each with its own table and a new lamp. Your floor lamp is a bit small and the table lamp too tall. Move your bar stools to a bar area, perhaps in the kitchen. Add one more chair to the foyer end of the space. Here are some helpful charts for the details.

I live in a dorm with a roommate, and was wondering if rearranging the furniture around would look better? I'm still currently working on wall art/room decor, especially after all the helpful suggestions from my last post.