"pizza slut" pic (posting date says Oct. 2012): https://i.sli.mg/EsQtOu.png

girl taped to table pic (says 126 weeks ago, or about ~May, 2014): http://archive.is/9FN8n

So the table-tape photo was posted about 1.5 years after the pizza-slut photo. The girls in the pics don't seem that different in age to me. They look to be close in age. Not saying it's the same girl, but I don't think we can conclusively say it isn't, either. Also, is it possible for an instagram photo to be posted at a date/time after the picture was taken?