I have come up with a modern retro look for your living room. Kept and up-cycled all the old pieces except for modular bookcase. The old pieces are still reflecting an antique look to lift the elegance and poise. Whereas the new pieces are modern fusion. The plan is kept simple with an island sofa in corner (IKEA) and a TV unit on front wall which is designed exclusively to look contemporary yet preserved. The colours are those are combination of neutrals with a hint of dark I did that on purpose to include the flooring. Since floor is dynamic and coloured a total flat neutral palette would have been out of context. Hence its a combination of texture with a little use of colour as well.
The centre light piece is a modern hanging multiple lights with brass hanging wire.
Had a great time working on this thanks for the opportunity :)

P.S. all the furniture used in model are mostly IKEA or urban outfitters (upholstery/rug etc)