Sometimes simplicity is the best policy to decorate a room. Just a vibrant shade of a bright color can do wonders with dull colored furniture & paint. Simple wall decoration with few wall hangings in a straight line is not a bad idea.
Less is more.
Source: zimbio
More Wall Decoration Ideas ..
Fabric Wall Decoration
Black and white wall decoration
DIY Mirror Wall Decoration with Tiles
Modern Living Room Wall Decoration
Living room sound proof wall decoration
Rotating Gallery wall decoration
Indoor Plants wall decoration
Single painting living room wall decoration
Two tone Living Room wall decoration
Elegant Living room wall decoration
Tapestry wall hanging
Texture and wall hanging decoration
Wall Decoration with Colorful Crockery
Stylish Wall Decoration
Living Room 3D Wall Panel Interior
Texture and wall hanging decoration 
Creative Wall paper Wall Decoration 
So, what do you think ?