It’s a collection of long-haired girls. Maybe their hair isn’t as long as the hair of Rapunzel, but it still looks impressive.
"Rapunzel" is a German fairy tale in the collection assembled by the Brothers Grimm, and first published in 1812 as part of Children's and Household Tales. The Grimm Brothers' story is an adaptation of the fairy tale Persinette by Charlotte-Rose de Caumont de La Force originally published in 1698. Its plot has been used and parodied in various media and its best known line is an idiom of popular culture.