I can see how a lot of people would find it disturbing, but from an arts point of view you can also see what the artist is trying to project. these pictures in the art world are cliloquily known as innocence pictures. the artist here is trying to project the feeling of a soon to be loss of innocence by taking a young girl who for all intense purposes will soon become a women, by stripping her bare and using no backdrop other than lighting it is supposed to give the feeling of disturbance and an uncomfortable unease to anyone viewing it, it should also evoke the viewer to remember a time when they them selves were at that stage the vulnerability before we are considered adults, this is what causes that unease and disturbance as we already know what lies beyond being a child.