Good eye - it is Giantess Katelyn. I drew her based on an image in this gallery: http://giantesskatelyn.com/worship/giantess-photos/the-giantess-and-her-cars
Wow Bob, fuckin' awesome! You did an outstanding interpretation of those pics. Great job! :D I also love the text on the header and footer. I'm pretty sure Katelyn would prefer a a tiny city over flowers any day. :P