Why give yourself the headache in the first place?
It is really hard sometimes to come up with reference materials for paintings. I understand that. However, when we use someone else's imagery without permission (for a work that is intended to display and sell), we cheat them and we cheat ourselves.
If we are going to paint from photos, then it should be from photos we have taken ourselves, or have permission from the photographer to use.
Imagine the mortification of having your painting removed from a show because someone identified the picture that was used to produce the work - not to mention the legal and ethical problems if the photographer or their agent is notified of the infringement.
I know of an artist who did wonderful media paintings from popular movies - unfortunately without permission of the copyright holders. He was hit with a $1.2 million law suit because he used their characters - even though he produced (mostly) his own reference - poses, etc. They own not only the images, but all generated images based on their characters. Needless to say, it seriously hampered his career which is really sad because he is a wonderful painter. Hopefully, we all learn from others trauma over things like this.
|