I was inspired by one of Patty's many great ideas at Deepspace Sparkle: http://www.deepspacesparkle.com/2011/06/04/the-years-best-art-lessons/13-7/
We did the line drawings first and then my students went into detail mode which I loved. They used either colored pencil or oil pastel. Very Cool...Thank you Patty!
I Spy DIY and Artful Artsy Amy