I've had this canvas for about 4 months now.  My summer break ends in 4 days.  I finally decide to get this painting for my wife off the ground.  It took me a couple of days, but it is now complete.  The canvas is 4 ft x 4 ft.  I uses a couple of photo references I found from real skulls and photographs from my travels.  It makes me wonder what I could punch out if I really got after it.