Sometimes you have to admit that even being a professional photographer you sometimes are just in the right time in the right position. This even looks photoshopped except the sunglasses that are added blur to take away my image. The rest is the sun being a good back light creating contrast to the subject and the studio flash over powering the strong sun light. This is a good technique to use: Use a strong flash (You need a strong flash) to over power the sun being behind your subject. It creates dramatic pictures. You often have to go to high speed sync , auto FP to surpass 1/250 that is a normal flash restriction. Otherwise the sun will blow out your picture.