I talked a bit on my Tumblr about how I used reference to make this page:
http://yamino.tumblr.com/post/37937869261/currently-using-google-maps-for

Don't forget the Sister Claire Book 1 Kickstarter is still going on for a few more days!  Last chance to get some amazing art rewards including custom sketches and artwork from me and Chloe C. of  "Go Get a Roomie!"

Go here for more info:

http://www.kickstarter.com/projects/1328500402/sister-claire-book-kickstarter