So you're running two threads on this space? I think you'll be happier with the responses if you stick to one thread for the entire makeover, as it is all inter-dependent - foyer - living - dining. Now that I know that the living dining are together I'd suggest you use measurements from the blocked space above the windows to determine stripe width in the dining space if you go with the wide horizontal stripes I suggested. The pattern is already set for you if you take the measurements. You could also make the stripes the width of your lower window section, or half of it, but use the horizontal lines already in your space to determine the other stripes you may add.

Agreed. and since windows make an essential and large part of a space, Curtains/ blinds become an important design element.

Just make sure whatever you install is able to be opened from the inside for getting out in case of fire. If you are the only house on the block with bars, it often draws savvy thieves as they wonder what you have in your place. If most of the block has bars, put them on too. Because then the lazy thieves will not go after the easy pickings, your place. I've been in big urban where both were true, either one or two houses on the block had the bars and they were targeted; or everyone pretty much did and whoever didn't got lots of breakins. One house I rented that had bars, they had some funny latches the landlord had to show me how to work, so I could get out of the house if I needed to for fire. It was code, the latches.

Do you have any photos you can share? We do better with both floor plan and pix. I think the 9' area should be devoted to a library/reading nook with bookcases on the two walls and a comfy chair and floor lamp for reading. I see lots of doors but no windows in your space. The stretch of space from the entry to the balcony/gallery should be kept open for traffic flow, so Place the FP on the 7.5' wall to be seen upon entering. I think 'd try a sectional with two equal wings. Put the TV on the 7' wall between the two doors and float the sofa so one wing faces the FP and the other the TV. Use a credenza 25% wider than the TV rather than a TV stand. In the jog that has a 6' and a 4' wall, try a family game or chess table and stools. Be sure to get a big coffee table made of reclaimed wood so people can put their feet up on it.