Hi, My name is XXXXX XXXXX I’m happy to assist you with your question today.
Even though you may have voluntarily consented to the taking of the photos, her demanding money to not reveal them to the public at large is a crime that is know as extortion
. Demanding money in exchange for not revealing some private matter, even though it may be legal to reveal the private matter, is extortion (aka blackmail) and is unlawful. Even if she legally owns the rights to the film or electronic files, absent your consent to have your image released to the public (i.e., publishing rights) they cannot legally be published without your permission.
What I might suggest you do is start recording these conversations, texts, emails, however she is making these demands, then file a report with the police. That should get you the resolution you are seeking.
I believe this answers your question. However, if you need clarification or have follow-up questions regarding this matter, I will be happy to continue our conversation – simply reply to this answer. If you are otherwise satisfied with my response, please leave a positive rating as it is the only way I am able to get credit for my answers. Thank you, XXXXX XXXXX wish you all the best with this matter.