Are you of an age to remember a certain variety of picture in National Geographic? Assuming those ladies knew they were being photographed and were ok with it being published, where does that land in your flowchart?
Once you have consented to a naked photo being made public, you no longer have any control over how it is viewed. One mans art is another mans porn. You cannot have a photo taken of you and then consent to it publicly only for artistic value. Therefore there is only personal consent in the flowchart, nothing else.