Maybe walls and drop ceiling could be painted in a vibrant accent color instead of more beige. Stripes are usually formal, more casual if not the same size. Chic could be achieved with silver and beige stripes - wide and horizontal. Here is an idea book on stripes and one on how to DIY. https://www.houzz.com/magazine/the-case-for-striped-walls-stsetivw-vs~225887 https://www.houzz.com/magazine/how-to-paint-perfect-wall-stripes-stsetivw-vs~3427677

Given your space constraints, I think it would be best to hang the TV on the wall that is common to the study/living room (just to the right of the door entry). You could get two or three small upholstered chairs for the living area (gives you flexibility in moving them around.) I would have a table surface hung so it can swing out and be used on the wall between the door and the opening to the kitchen. If hung with a hinge attachment so it can be flat on the wall when not in use, you still have space to move around. Backless bar stools could be lined up on that wall when the table is stored flat to the wall, and still be used for more guest seating.

OK... but the wire wont be lower as it is fixed now. The wire in the pics below is the wall facing each other. They were leveled on equal height but the beam on one wall makes it seem a little above. But i think you guys are absolutely right that up and down lights wont look good there. I think you are right about down lights lessismoore. Would it look good if i go with two different lights on opposite walls??? it would look odd right.

For the dining room, I think I'd orient the table 90 degrees from how it's drawn, and I would make it a drop leaf or gateleg table so that it can be made smaller when not being used for dining. I would embrace the idea that the entry is right in the middle of the living room, and bring the living room furniture out towards the fireplace so the fireplace is connected to the seating area. Maybe TV above fireplace. In that back corner where the sofa is drawn, I'd make that a small work/office space.