I know they won't do it, but I'd really wish for an Italian wedding. Screw the horse carriage ride for a gondoliere in Venice.
Would be something different for once.
Italy has been a republic for quite a while, and even if he is a nobile/count, it does not matter, those titles have no value. However, not the same could be said about UK where her grandmother is still very much reigning, and her father is a royal duke. So it still makes sense to have it done in England.
That said, what you described sounds lovely.