It's not because two temples look right in some sets that they look right in every set.
It seems you have an kind of obsession with churches. No problem with that, they may be more interesting to model, I don't know I'm not the artist.
But in the case of the French set, two churches, paralell, in size 2, and the only big building, while in size 3 you add a castle, just don't look good.
It would have been better to put the castle and church at size 2, and keep the two churches for size 3.
But if you think it's better to have two churches instead of one church + one castle, well as you said it's your set.