Looks like a "brown-out!" First off, that white wall is killing your space. I'd paint it in the sage green color from the rug. Then I'd pull some more colors from the rug and the art into the space via drapery panels, pillows & throws. Would be tempted to replace the blinds with fiber or fabric roman shades and stationary panels. That is where you can bring in some pattern. There's no sparkle here either, so consider some metal for the coffee table. The decor in your entertainment shelves is not capturing our attention either. Try 1/3 books, 1/3 decor items (larger is better or group smalls in threes) 1/3 open space. I'd try that sculpture from the top of it on the mantel with a large framed art piece. If that sculpture is copper, you might frame the art in copper and be on the lookout for copper in coffee table - that could even by a DIY project using copper pipe.