http://imgur.com/a/2fUmE
Real physical double-light would look better - this demo lacks ambient occlusion for hemispheric component (soft shadows in real world are free, in rendering they are expensive).
http://imgur.com/a/2fUmE
Real physical double-light would look better - this demo lacks ambient occlusion for hemispheric component (soft shadows in real world are free, in rendering they are expensive).