This is a difficult question to answer without a full consultation because the court will need to determine if your ex boyfriend's behavior is stalking or just irritating. I have seen many cases go before the family violence court judge with similar facts. You should consult with an attorney, particularly if the pictures of you were taken when you were a minor and he is distributing them to others. If you cannot afford an attorney, I suggest speaking to the victim's advocate at the courthouse. You should contact the Superior Court in the county you reside and ask for the contact information for the domestic violence advocate and completing protective orders.
This answer is for general purposes only and does not establish legal advice or an attorney-client relationship.