I much prefer
Anthea to
Georgia. It's attractive and not geographical. I like
Georgina, though.
Georgia Colleen flows better than
Georgia Antoinette, and I don't enjoy two feminised names being used together.
Anthea Florence is far too floral.
Anthea Mei sounds lovely, but a lot of people will think that
Mei is a mistake or a kre8iv spelling of
May or
Mae. My Chinese friend Mei-Lin tried to get people to call her Plum, but nobody ever did!
I named my son
Peter, so I really like your boy choice.
Peter Lorcan would be my preference.