"Ironically" the biggest fans I know of Atelier are girls (and I only knew of the series because a friend that is also a girl, what a strange coincidence, told me about it).

I know the one with brown hair and lavender clothes is called Totori, seems to be a favorite of my friend because of her adorable choice of clothing. Not sure but I think the other is called Rorona.

I certainly don't see what is fetishist about them. They don't sport "fanservice" clothes or leather bikinis or do anything inherently sexual that I know of. Seems as harmless as it can be actually.