they are screen caps taken straight from the episode as opposed to an actual photograph….
Ah, nicely spotted! Agreed that it would have been nice if they’d taken actual pics to use instead (there’s a pic of Emma & Snow in her apartment that was taken specifically to be a photo in a frame, if memory serves, so it’s not like they hadn’t done this sorta thing before), but at least I guess the screencap pics can be definitively linked to that Manhattan ep. If that was their reasoning, then I’m inclined to think that all the pics she has there are from the Manhattan ep, not also pics of Henry’s younger years.