“he is also right about even if it is after marriage, while you can touch obviously, but you cant do so in public (and the photos are taken in front of others and are going to be public.)”
That is your sevara, but not everyone feels the same way about married couples touching after the chasunah. Obviously we are not talking about graphic affectionate behavior, but holding hands? Please. I know a choshuvah Rov who INSISTS on the chosson and kallah holding hands when they walk down from the chuppah and also when they come back into the seudah room.