Many times in the movie, but especially at the beginning, many pictures of nude women can be seen on the walls. Some of them you can't see well at all, while others you can clearly make out.
A man films an unknown woman and follows her to a house. She begins to undress. No sex or nudity is shown but it is implied that she is a prostitute.
Milly plays the part of a topless model. There are references to her topless photos but we never see any when she's topless in any way. There are scenes in the studio where the photos are taken but again we never her topless. The 'newsagents' has several pictures of fully naked women dotted around the outside and inside. These are clearly visible but form part of the backdrop and aren't focused upon. A man looks at some photos (clearly pornography of some description, although they aren't shown) and buys them.
The protagonist photographs women as a part-time job. One of the women waiting to be photographed stands by a window. She is naked except for a kind of poncho that covers her front although her back and side are completely exposed and focused upon for a few seconds. Milly is photographed in a burlesque outfit.
There is one very brief (about 3 seconds) shot where Milly is lying back on a bed with one breast exposed. (This is quite easily not to notice).