@alphian has verified these photos are not plagairised by adding a link to their steemit profile at http://jpgmag.com/people/Aliphian (you can find the photos on there).
I've looked up the photos, and I cannot find them anywhere else. They're a few years old and no other known sources.
Just a heads up, I use a couple of other sites that may have the same photos posted. It's hard to remember because I don't really use those sites anymore. But either way, the usernames are the same on the other sites, so it's pretty plain to see that it's me. I appreciate the concern for content creators.