If you can access your home, take some colour samples in shades you like with you and check the light and aspect of each room, that can change colours, some rooms may be a little dull and need bright or cheering colours others may be hot and need cooling colours. It is very important you consider this before you start. Then choose ideas and colours you like and that suit your room, and then go shopping to see what is on the market and available. It is no use getting your mind set on a colour for example and then finding you can't get a fabric in that shade. Flooring will most likely be common to all rooms so you have to ensure the flooring you choose will work with all your planned colour schemes in each room. Check out all your options and things will then start to come together for you. When shopping pick up as many swatches and samples as you can, even take photos of ideas if you are able, it will all help. Most important thing is to take it slowly. Don't try to have it all done at once. Aim to choose your floor coverings, then have all your rooms painted, and floor coverings laid before you move in. Furniture and furnishings can be added at any time afterwards.

Manvisudan...you might want to re-post your dilemma in the design dilemma category and you will get more help with your room. Not too many people look at this "other" category.

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.

I like the ceiling. I think the hanging lights are too fancy and distract from the ceiling decor. A simpler light would look better or sticking with the canned lights you have. The walls have too many big, black things on them. It's hard to tell if they are windows with shade --- in which case I'd pick something lighter, perhaps to echo the ceiling, TVs (how many do you need?) or what. I'd consider a big piece of statement art in the place of at least one. If you're on a budget, get a large, high quality photo in the right colors, you can take it yourself. Sepia and black architectural might work. I like more color and more natural light. You may have closed the shades for a better picture, so it's hard to comment on the light, plus windows are a feature of your room, not exactly a decorator's choice. I would consider how to get a few small pops of color in, pillows, flowers, candles, maybe even a runner rug along the right wall. If you are doing this as part of a portfolio, the entire ensemble would look more welcoming with a few touches like someone lives there. Something on the coffee table, for example. A few books and a candle. A tray with tea things, a vase of flowers or basket of fruit. Pick one or two things and make it composed. You see this a lot in designer Houzz photos. Here's an example, you note this picture would be a lot more stark with an empty table: https://www.houzz.com/photos/21-house-contemporary-living-room-san-francisco-phvw-vp~60642