I just posted The View From Above over the weekend and I thought it would nice to show you where the idea got started. The sketch below is what I worked from to make my final digital version. As you can see it's not an exact copy of what you see in the print but It's real close. I like adding or subtracting once I get an image scanned in.
Creating on the computer is great but starting by hand on paper is the best way to put your own personal stamp and style on any illustration. Just remember pencil and paper first!