Possibility to review already approved pictures. If you make some mistake while approving, you can review pictures and delete some. Other possibility is for set up the site to automatic approval of pictures, but with possibility to the admin review them after and look for nudity or ilegal pictures.
I have done such workaround customization in my site, however, i think it should be a default feature. The problem is that a lot of people set cars, landscapes, animals and so on as profile picture. I don´t plan to forbid this kind of image, since i think it is nice let the people share their intere...
Despite the option to users rotate pictures, most of them do not rotate, leting the site with a ugly visual. Admins should be able to rotate while approving them.