There is contrast between the traditional furniture and the focal point of the floor which pops, draws attention. I would recover the sofas in cream colored soft fabric - suede. I would leave the curtains grey, and put down a large neutral area rug. The edges of the room would show the pattern of the floor. I would color the wall and add texture to it, but not too dark as the room will appear smaller. Add a picture and put a nice plant holder, large vase in the left corner of the room - an oriental-style vase. Or, a cream-stripe fabric on the sofas. You could go soft or bold in this room - depending on your taste.

Manvisudan, choosing a rug more along the lines of what I showed will afford you the opportunity to add some fun and interesting pillows to your silver ones. Its easy to change your pillows when you want a different look. The rug, on the other hand, is a bit more of an investment. Let me know if you would like pillow and art recommendations :)

Depends on what effect overall you want -- hot tropical feel (oranges and reds) or a bit more toned down? You can take inspiration from pictures of gardens with lime green heuchera or sweet potato -- often paired with chocolatey purple, silvery greens and blues.

The colour examples are in the FB link bottom in the text.