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).

Hey studio3600 - so picture hangers work with heavy frames/large paintings as well?we dont get them in India so will have to order online - do suggest the best company for this thanks so much!

Hello - do you mean paint for the walls? I have seen many bathrooms in other countries, not just India, that have a combination of paint/tiles so don't understand why this would be an exception

if u like to paint the walls with light grey shade then it would be better to make the sofas white rather than a darker shade.