DY and feivel: I won’t go into detail, but I think a fair Chiluk is whether the picture can in any way be considered provocative (mods, if you want to replace that word with another one by all means feel free; I just can’t think of a better one for this situation). Without giving examples to the other side, I think it would be fair to publish the hand-holding pictures or where there is slight touching because those are not pictures that would cause Hirhurim in people who view it. If there were pictures that would, then obviously they should not be published.
and feivel, a Chareidi Rabbi told someone I know in 6th grade that being Shomer Negiyah was just a Chumra. I don’t know what his Cheshbon was in saying that or whether he was just an extreme Am Ha’aretz, but to this day I have not forgiven him for letting that girl’s entire class think that it wasn’t really a thing.