@designerman put some watermarks on your templates/work and if they ever Photoshop it out you can easily report it to IG/other authorities to take it down. If you want to make money out of it you can always engage a dispute and make money out of it. Many lawyers are looking for cases like that because they make alot of money out of it (+ most of the time you don't need to pay them since they're satisfied of what they got with the court) So yeah basically warn the page to take it down and if they dont take the necessary measures ✌