Btw, I had an issue with a dog owner who changed her mind after years of photos being in my portfolio and asked me to delete them. I contacted shutterstock about it to assess the situation. They told me that in such case the release won't matter and they will ask you to delete photos either way. Other stock agencies informed me that release doesn't matter either, but it's up to me wether I want to take the photos down or not. I also take photos of pedigreed animals. So just info, for your consideration.