Miley Cyrus is 15 years old - is it really appropriate to be showing her in such an obviously sexual pose? Not like photos of her flashing her bra is better, but this just seems creepier, especially since her family was right there when the shoot was taking place.
This is from Nancy Gruver at Girl Media Maven on the hyper-sexualization of young women:
Girls are barraged by sexualized images all around them and everyone they come into contact with in daily life is also surrounded by those images. The images viscerally teach "the importance of being sexy" if you are female. The images teach all of us that acting sexy is how girls/women can have power without being rejected as domineering or bitchy (see media coverage of Hillary Clinton for the way "non-sexy" female power is conveyed).
Now imagine the extreme confusion girls feel when they are surrounded by images promoting the power of female sexiness and at the same time are told that it's bad for girls to be interested in sex, to act sexy themselves, to dress sexy, etc. The real message being conveyed, of course, is that girls shouldn't want to be powerful.