looks like the dark trailing behind
I often prefer the sight of the back as the model walks away, when it comes to ann, yohji, etc.
and you know with ann,a few years ago she,i think in the belgian fashion design book,expressed her utter fascination with the back and the emphasis on the back describing it as the most sensual spot on the body and containing all the erogenous zones. i think that's why the behind shot is always so interesting with her.