Hi there
Maybe you could edit the images in a image software applying filters to achieve it ? Would be the easyest way, altought there are toon shadres also around the forums.
Commercial plugin to Photoshop :
http://www.digitalanarchy.com/toonPS/main.htmlA tutorial to do almost the same in GIMP :
http://ocaoimh.ie/2004/10/01/cartoonizing-photos-with-the-gimp/I dont know if this is what you want.
Anyway, good luck.
ps. : Looking good, keep it up !
Cya.