You have all the reasons to redo the house, its very lifeless and looks worn out. I feel creating a separation will terminate the spaciousness of the room. Adding colours will surely help, Since you have a tan color sofa,I suggest grey, white or light blue color on one of the walls. Add some art works of the color you chose for the wall. This room needs some fillers like , books, throws, candle stands tall and lean. YES DON FORGET 1. Mount the tv on the wall make some space on the floor and Fix a large size mirror ( Wooden Frame if you can afford).

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.

Perhaps a large round table might mean a rug is not at all necessary. It could be a metal tray table, or carved wood like Rebecca Mitchell Interiors illustrates. Ideas also to consider, using multiple tables can be found at http://www.houzz.com/multiple-coffee-tables. I also agree with comments above that some color is needed on the walls. You could then hang round mirrors, or an unusual curved shape like RMI shows above.

Here you go.. Iron Man: https://www.amazon.in/3DlightFX-Iron-Mask-Deco-Light/dp/B00WUDSS4K/ref=pd_sbs_21_3?_encoding=UTF8&psc=1&refRID=66JPRHWGBQV4W76YX6TW&tag=csds0c-20 Captain America: https://www.amazon.in/3D-Deco-Light-Captain-Childrens/dp/B00DDHDDCO/ref=pd_sbs_21_1?_encoding=UTF8&psc=1&refRID=66JPRHWGBQV4W76YX6TW&tag=csds0c-20 Spiderman: https://www.amazon.in/LIGHT-Spider-Man-Spider-Light-MARVEL/dp/B00GKMHIDO/ref=sr_1_1?s=toys&ie=UTF8&qid=1505934989&sr=1-1&keywords=spiderman+deco+light&tag=csds0c-20 Thor hammer: https://www.amazon.in/Avengers-Light-Hammer-Decoration-Mount/dp/B00JXFU4MW/ref=pd_sbs_21_4?_encoding=UTF8&psc=1&refRID=66JPRHWGBQV4W76YX6TW&tag=csds0c-20 Hulk: https://www.amazon.in/3D-Deco-Light-Hulk-Childrens/dp/B00DDGYXHE/ref=pd_sbs_21_2?_encoding=UTF8&psc=1&refRID=66JPRHWGBQV4W76YX6TW&tag=csds0c-20 Thanks, Amit Cornerstone Designs Bangalore.