you have a right to those possessions, therefor you can threaten legal action. If you have duplicates, you can contact the relevant authorities, and if it is to cause harm to you, can be used in legal counsel.
In most cases the threat from a lawyer is enough.

i wouldn't say drawing booba makes you inherently a NSFW artist as at the end of the day its just anatomy. Also, speaking for myself, follow you for your art. whatever you feel you want to post will support.