I think your house might lend itself to this beautiful modern wood and glass look. http://www.trendir.com/house-design/tag/mexican-modern-architecture

You can do white entirely. The dark brown tiles will become the highlight. You could do dark brown only for the lines on your compound wall, or keep it white as well. Do Asian paints white without mixing any blue. Also white keeps the room temperature cooler.

Hello Abinash, The size and measurements of sofa depends on the piece being selected or made, the seat is usually 16-19 inches high. Note that the seats facing the TV are not having a back support as per the plan or 3 d render. You may want to reconsider this as it is not very comfortable to watch the TV without a back support. For the other end of the sofa hope the TV clamp is movable. You may try the home trial of sofa from Urban ladder and Pepper fry and see how different sofa will look in your house. They serve in metros as of now. They do charge a nominal fee for this service. Guess some 400 for upto 4 sofas. Thanks, Nitin CORNERSTONE DESIGNS Bangalore.

Hey Vaibhav, Here are a few pictures you could combine to create the facade you like! Hope this helps!