These photos are free for any kind of usage. That means that you can use them for reference, include them in your drawing tutorial, put them on your Reference pictures site or use them for photo manipulations.
The photos are taken in the suburb Ryd outside of Linköping, Sweden (www.linkmeet.com/_Ryd,Link%C3%B6ping) on 2008-03-18 at 07:00 o'clock Swedish time.