For example, how would I take the girl with the pink shirt out of PIC A (as labeled) and put the girl from PIC B there instead? If that's even possible, that is...
PIC A
http://i41.tinypic.com/ojgw3q.jpg
PIC B
http://i44.tinypic.com/25oximx.jpg
PIC A
http://i41.tinypic.com/ojgw3q.jpg
PIC B
http://i44.tinypic.com/25oximx.jpg