There is nothing better than a good mural.  Sophisticated, bold, transformative.  Check out these spectacular spaces.

Sources: 1) Michael Dillon (via Attic Mag) 2) The Aestate 3) The Aestate Tumblr 4) William Sofield 5) Piero Castellini, House & Garden (via Mark D. Sikes) 6) Decoupage forest, The Glade at Sketch