My revision based on the new pix. Still like the idea of a round foyer table in the large hallway. The dining area definitely needs to be moved near the kitchen where the tufted chairs and doors are. I'd anchor it with a rug that is at least 4 feet wider and longer than the table. It appears the tufted chairs have a matching sofa. I'm revising my 4-chair suggestion for the FP now, and suggest the sofa facing it and the two chairs between the FP and sofa facing the dining space which is now out in front of the kitchen door. Anchor that seating with its own large rug. In the end where the draperies are I'd use the two sofas facing each placed perpendicular to the windows, each 18" from the coffee table. The chairs can go at either end of the coffee table, one near the windows and the other with its back to the open room to form a closed conversational grouping. Loosen the drapes and let them fall loosely. Once the arrangement is worked out, we can tackle painting, if you want.

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.

Its just really messy right now. Too many colours and clashing prints. Is that Puja unit lime green? Or does it just appear that way because of lighting? Either way, it stands out like one more distraction. Pick one base colour add and add prints that go with that base. That TV unit HAS to go. So do that black metal coffee table and the carpet. I would suggest you go with a simple geometric print in the carpet. But apart from these obvious design gaffes, the structure has distinct possibilities, if you do a classic English style. The railing above adds some interest

you can go for the light colours if you have well ventilation system ( kitchen chimney). or if you don't have, go for the dark shades , it will help to maintain easier, i will suggest you can go for the bi colored shades like gray , jet black or dark brown and chocolate , HOWEVER its your home and you are the boss. choose whatever you want, coz its LOVE which makes your house a HOME.