there is a visual geography of metaphor going on here, with fake bodies with no heads wearing real clothes and a real body wearing a fake face on her back.
As Karen said, a weird juxtaposition. She looks like an ordinary girl but there's nothing ordinary about that backpack . . . or her shirt . . . or, certainly, the dresses she's looking at.
What does this look like in black and white?
ETA After I asked that question, I took a look. No question what the backpack's opinion of the fashion is!!
I'm fascinated by the peter pan collar on the dress at the rear. The backpack reminds me of some of the face jugs that show up on Antiques Road Show. And the shirt that the girl is wearing... This girl is clearly a free spirit.