The first photo "Candy Cigarette" is of the American photographer Sally Mann's own children, which I think gives it an added poignancy. To me, the subject seems to be literally looking beyond the childhood her siblings are still happily caught up in, and only the mother among them knows what that means at that moment.
Mann caught a lot of flak for photographing her children nude and in emotionally raw situations, but the results are often truly beautiful in my opinion.