"If I am not making money off the photos, I am not violating copyright."
Copyright infringement is not excused if you are doing it for some reason other than profit, such as malice or the collectivist notion that an individual's creative work "should be free for all to share." These are the typical motives of some people who post thousands of Playboy photos to newsgroups. The court may fine you more or treat you more harshly if you have a profit motive. But you can still get punished-badly-if your actions are harming the commercial value of the infringed pictures. Or if you infringed "knowingly" or "willfully." Or if the judge thinks it appropriate to "send a warning" to discourage other would-be infringers.
Violating copyright is illegal whether you do it for money, love, competitive advantage, malice, or any other reason.