Privacy could be obtained with a screen, placement of potted plants, an open bookcase, but I like your idea for a curved track with a curtain as one option for visual privacy. I would rotate the dining table 90 degrees and move it towards the balcony. I would remove those two chairs/tables because the layout of a single chair that far apart from another chair does not work. You may need to move the seating away from the main entrance because it looks like you walk in and you're on top of a loveseat. In such a tight space with so many doors that open in to the main living/dining - my advice is to keep it simple. Scale the furniture properly and have pieces that are multi-functional. Example- an ottoman that can serve as seating. A bench at the dining table to seat 3 on each side. I would also place two smaller loveseats facing each other in front of the fireplace. This will give you an "entry area" (along the back side of the kitchen wall) and help to define the living from dining rooms. Even if you don't have a formal entry, try to create a bit of space to welcome people.

You definitely don't want to emphasize the T-wall, as it will just draw the eye to the mismatch in scale of door and window. I honestly am not sure that an accent wall does anything other than provide an excuse to make fewer art decisions, but I guess it could be ok on the larger wall...

Thank you IDUS Furniture store for looking into my query.I have a doubt ,if I paint my front wall where those 2 chairs are kept,is it mandate to paint a L shape wall behind sofa? if yes, should I be going with the same color as the front wall? Just FYI- I have a brown and beige ceiling and was planning to paint my bedroom doors with darker shades

it depends on what kinda design you like - contemporary designs, traditional designs etc. Once you know that designing what you want becomes easy. Walls - you can have all white walls and one different colour wall. Sofa - This is the center of your living room and other designs and colour revolve around it. Pick sleek, sold colour sofas. A center table that goes along with the sofa and a big carpet under it. Curtain - curtain colours should match the sofa. Pick one spot for the study table, its placement doesn't look good.