I think you won't have any luck finding pics of her ass. She is a busty model and busty models usually don't show anything else besides tits. No ass, no pussy, no hardcore, sometimes is even hard to find a busty model just holding a dildo... some busty models even have it written on the contract, what they do and not do.
Here some links to two videos if you want more of her:
http://www.divinebreasts.com/bigtits/vids/ginger/01/index.html
http://www.bigtits.com/vid/7244_BBW-babe-with-displays-her-huge-titties.htm