Some very careful angles there! It would be good if the final image was all of them full frontal and waving to the camera but maybe that would stop it appearing in as many shops.
I know the woman furthest from the camera in this photo. She was very keen to tell everyone it really was a fully naked calendar (it was for Multiple Sclerosis) and, as you can see, they kept it “safe” by avoiding close-ups. (There’s only one full-frontal in this particular picture.)
She did it for all sorts of reasons but had such a good time she became a naturist afterwards.