First off, delete your account name from the OP. Generally speaking, don’t share any information with anyone online unless you actually know them. Second of all, report it to the police. YOU won’t get in trouble, they will. If they actually sent your images to other people, they would get into a lot, possibly felony levels of shit.
Also, this person is trying to scam you into sending you money. Anything other than forwarding the information to the police will escalate their demands.
Remember: them owning your pictures (I’m assuming they’re “intimate”) means they are now in possession of CSA. You’re the victim in the situation. Go to the police now.