Found this on Pixiv, and as far as 2D drawings go, I can't imagine a better sequence. The artist drew a 3 part (so far) dojinshi that you can look at too. It also has good process but is a little more stylized.
TSF Trial and Image (by delta-TSF)
http://www.pixiv.net/member_illust.p...st_id=16823594
So... Does anyone have any other art they feel defines process in their opinions? Old or new, post it up!