Wow that is a HUGE difference!!!!!!!! Well done you!
I've gotta say this though: I went shopping for the first time at bravissimo the other day. Nothing fits my top half due to my huge bust. Anyway I came away with some awsome shirts, lingerie and a crash course in bra fitting lol. Looking at how your straps are slipping in that picture, it looks like you've changed bra size as well. You must've lost some of that weight from around your torso as well as your hips. Well done, that photo has inspired me not to give in and eat the cadburys creme eggs my mum's bought me!