Uhhh, yeah, I could see why Reddit might ban you for posting artwork by Sally Mann. I 100% take Mann at her word when she says that her work is strictly artistic. That to me is not even remotely in dispute.

What deeply concerns me now is the combination of you posting Mann's artwork (I'm assuming you didn't just get banned for one of her landscapes) and posting sexualized illustrations of fictional children and remarking about licking your cousin's underwear while she wears it. That's a really disturbing pattern, and I mean with 100% sincerity that, even just for your own benefit, you should seriously consider seeking professional help.

Therapists are some of the kindest, most understanding types of people you'll ever meet, and they can and would want to help you work through whatever you're going through.