It’s not just “Western Puritanism” to recognize that a photo of genitalia usually has a sexual context – the point of cropping it so tightly is to focus on that

It’s not just “Western Puritanism” to recognize that a photo of genitalia usually has a sexual context – the point of cropping it so tightly is to focus on that aspect! – but it’s also distracting from the real reason this is a crime: a convicted sex offender did it, by his own admission, with intent to cause distress to an unwilling participant. No matter how body positive you are, lack of consent to be part of someone else’s sexual gratification matters a lot. Even if the images were totally non-sexual in purpose - say pathology case studies in a medical textbook – consent still matters and you don’t go shoving them in other people’s faces without asking first. You’ve been conspicuously non-specific about the other cultures you’re claiming would be okay with this, perhaps you could give an example and explain why it’s better?