Hello curious guy,
I think that they are Smith54321's actual pictures.
He has posted a couple before I believe, but is an infrequent visitor to the site.
Much like the great Pedro, The marvellous Drondo, The magnificent Irishboy, I would imagine that he has other things going on and we must show some patience, but you can always ask.
To keep you occupied here are all I have, not my own, some from here, some from there (Flickr- where you can find rear view pictures if you look hard)
Students.zip