10. Butterfly Suicide.
I have this on a t-shirt that I bought in Berlin, except the background is khaki, the girl is white and the butterflies are pink.

It's usually attributed to Banksy, or at least those companies selling the image on t-shirts, hoodies, tea-towels, ipad and iphone covers and everything else would have one believe it's a Banky, but it's not. It's by Jason Byron Nelson. Maybe that's why it's never specifically referred to in any of the relevant Banksy literature.