Love the armless sofa-bench! Try using it in the center as a "cross-linking" piece between the sofa and chairs. That way people can sit on both sides of it, conversing with the sofa people and the chair people. Put the chairs where it is and use the side table from the left of the pic, or the one with flowers, between them. You'll need one huge rug to anchor the space or two smaller, and very similar ones, to put on either side of the blue sofa-bench. The other two side tables are too tall and too short for your seating pieces, so ditch them. Use your coffee table between the sofa and armless sofa (18" away from each of them.) Here's a chart for judging table and lamp heights as you'll need to work on that for balance. Please try this arrangement, and post by commenting and using the Attach Images button to add pix of the update. We'll tweak it on out from there.

Hi Rorli, I hope you are doing well. Congratulations on the space! The best way to cozy up a space, without spending a lot is through - Art - I feel the Giant picture on the wall is substracting from the space rather than adding to it. You can replace it with something beautiful that you like and/ or a medium sized framed mirror - This will reflect all that beautiful light in your apartment and make it more spacious. You can add a wall hanging in the empty wall space near the bar area. Rugs - A giant rug which accomodates bothe th sofas rather than just the coffee table. This will also make the room look bigger. However, It is important to buy a plain or maximum two tone rug for this effect to work. If buying a rug with lots of detail, please buy it in a lighter color. Cushions - Lost of colorful fluffy cushions in various shapes and textures and a couple of throws wil help balance out the beigeyness of the sofas. Lighting - Adding fairylights in the balcony and a couple of tall lamps in corners will help too. If you can, replace the central light with a chandelier of your choice. Plants - A few indoor plants add that homey feeling while having the added bonus of supplying oxygen. You can also opt for fake plants, if you don't want to buy real ones. Common color scheme - This is the most important aspect because even after buying new furniture, it may not look good if everything is mis-matched. To make the room feel more spacious, you can shift the light in the corner next to sofa, after removing the sofa from the corner a bit. You can also just replace the single seater with a luxurious Armchair of your choice , tilted to face the tv and put the small table next to it to turn it into a viewing area/ reading nook. Above - Blue/ white color scheme works very well with plants. Monochrome neutral color scheme with pillows and throws. If you need any more ideas or help, feel free to contact me. Hope this helps!

#1 is the only one that works with your doorways. But I would rethink the sectional pieces which look too large. You will need at least a floor lamp. Your table/chairs looks narrow in relation to your sectional - is it to scale in the drawing? You may not have enough room. I would use a sofa against the wall and two chairs on either end facing toward each other.

The headboard is definitely bright and lovely. but the window arch also gives nice rustic look to the room and makes it different