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.

Start with super straight and flat wall studs and the $$ premium that that will require. Then the $$$ premium for the plasterer and the double layer of upgraded stock.

I think this was just brick added to a wall so you should not need anything other than mortar but IMO this looks odd just put in the middle of a wall I would remove it

Kelly, if you would want it to appear in the center, you may have to add a mirror half way up on the left wall. Adding long barn shelves on the back side will add to the centered look. The shelves should touch the mirror for a seamless look. Back wall can be spruced up with handmade tiles. Thanks, Nitin Cornerstone Designs