What's The Big Frigin' Difference?!

This beautiful B is hiding some subtle differences in these two pictures. Are you good enough to spot 'em? **HINT -- There are THREE differences in the above photographs!**

Source: http://www.tmz.com/2012/11/24/whats-the-big-frigin-difference-tmz-games-photoshop/

Amanda Marcum Amanda Peet Amanda Righetti Amanda Swisten Amber Arbucci Amber Brkich Amber Heard Amber Valletta