A number of the photographs - half of them, to be precise - are now not displaying for me.
I'm not sure if this is a technical issue - perhaps at my end - or if they have been "pulled" pending investigation.
I think it's very hard to tell, these days, whether things have been "shopped". But I assume expert judges would be alert to these things.
But blatantly reusing a photograph that has (allegedly) already been published on a Christmas card should be easy enough to check - especially if the person reporting it still has the card, as they claim.