How has the sketch established itself towards the final work? What has changed or evolved? From Charles Kaufman's Sketch vs finished art http://toontoonz.com/indexresources/sketch-vs-art/sketch-vs-art.html
What dimensions does color add to historical photos? (from http://posterityproject.blogspot.ca/2013/11/bringing-history-to-life-or-distorting.html)
Alan Levine or Bryan Alexander… or both?
What kinds of information differ between these maps?
Not about to become a decorator…