I was thinking something along the lines of this... You can use the colors of the rug, like the terracotta, in your pillows on the chairs. It's too bad you don't have room for the alternative placement of the TV, and in that case I would get a console to put catty-corner on the walls next to the fireplace on the right, even though the windows will be behind the TV. Since you say this is not your permanent home perhaps that will do as a stopgap measure. The couch should be facing the fireplace, unless you want to angle everything to face the TV. The chairs will go perpendicular to the couch. The fireplace nook you can fill with a painting or perhaps an arrangement of blue and white Chinese porcelain (have a look at etsy). With a beautiful rug I'd suggest a glass and metal coffee table so the rug design shows through. You'd also need side tables but I see no way that you can have lamps without trailing cords. Find a way to display books on the tables, which give a lived-in look. Pardon me if I use pictures of my home to illustrate some of these points; your taste may be quite different, but it's just to give you some ideas. This rug is made of polypropylene and therefore much more affordable, but you can see how these colors would brighten your room and give you colors for pillows on your couch and chairs. You can find rugs on e-bay, overstock.com, pottery barn, just google area rugs and then indicate "traditional" or "oriental" and you'll find lots of ideas.

Do you think there is a way to center the loveseat on your window? It throws off the room if you cannot center it. With the large scale of your furnishings, IMO there is no place for the painted white table. The sofa and loveseat should have a good size coffee table in front to anchor the seating area. It's hard to recommend accessories when you haven't shown us most of the room itself.

I really dislike sectionals for seating , IMO the most expensive way to get the largest number of uncomfortable seats. I think to add seating in your space woudl be best with just adding chairs maybe 4 . You seem to have a lot of wasted sopace like in front of the windows for instance and since thta is not a patio door why the huge walkway behind the sofa . I would put 2 chairs on the wall where the window is and a table witha lamp, move the sofa back and add 2 more chairs in the space that will be created on the right of the wall unit when uou move the sofa back then when you have ac rowd pull the 2 chairs in from the window and the rest of the time those 2 chairs are a nuce space for an afternoon read or with a friend for a glass of wine . Take that little console table a awy add a long shallow one and a huge piece of art above it . A bigger rug to now fill thta space you will create with moving the sofa.Some solar shades on that window so you can keep the view and add nice full drapes for nightime to cozy up the space .

https://www.houzz.com/user/juliastoklosa13 The green art was part of a mood board colour samples so I don't know where you can find that particular one. Art is so personal... Maybe you'd like something like this: https://pixers.ca/canvas-prints/seamless-hand-drawn-botanical-exotic-vector-pattern-with-green-palm-leaves-on-dark-background-139531976 https://www.greatbigcanvas.com/view/royal-rhododendrons,2432309/?size=16x20&coupon=RSVIN&coupon=RSVIN&country=CA&gclid=EAIaIQobChMI1NyKsNGq_gIVLPvjBx0KYQYQEAkYAiABEgLGdvD_BwE