Too bad about the first one. Dev could have forgot to include it because the anniversary event has 6 CG and they are named as such, but it skips 5 which is this particular pic.
Yes, I know about the second one which is why I wrote "when Josef is out of the house", as this will have the event end with 1 CG only and she awkwardly thanks for breakfast, same as with the BJ only. As long as Josef is there he will interrupt and this triggers the subsequent CGs, but without him its only the one.
About the third, is it completely random? Because I tried several Wednesdays on the love route and never saw it, which made me think I missed some precondition. Mind you I saw all of the CG already but would like it in game, especially the first mentioned here