deleted and consolidated - accidentally moved this response without the thread.
Hi there
Consider filing a claim Pinterest Copyright Infringement
On the page there is a form that has to be filled out and sent to Pinterest this really helped me when I had this happen (they used pins | images of me as profile pics et al) - as long as you can prove the photos | pin content is yours you should have no issue.
Sorry, didn't mean to jump in but I thought this might help you.
Lisa
@bodymindmood - I'll tag you in the actual thread where the user posted the query. This thread was me accidentally moving my response - not the entire thread.