I don't really understand your argument there cuckoo. An image of beauty and innocence doesn't become something unpleasant because it's in an exhibition does it?
And I didn't look at those pictures and think the girls looked miserable either.
I agreed more with this article that said
the kids here are being kids: dreamy, abstracted, thoughtless in the power of their youth and beauty. They also happen to be naked - as kids sometimes are. And neither in life, nor in art, is this necessarily a case for concern. Lacking any sexual component, the images are merely human.
We live, however, in hysterical times, when the mere notion of a undressed child inspires howls of terror and fury (as photographer Nan Goldin and Annie Liebowitz both found out recently). This moral panic, masquerading as vigilant protection, has a pernicious effect upon society. It debases every relationship, makes every adult a potential predator, turns art into pornography.