I think
Iona and
Daisy are pretty sweet together, and it's not unusual for people to have a different style for the opposite gender, so
Christopher isn't too suprizing.
Is there any chance
Catriona was still born first and
Iona was named after her? Otherwise I wouldn't use the two together.
Mine would be:
Xanthe Opal EstherIselin
Carys Reverie
Sylvie Rowan Delphine &
Oscar Felix Matthias.
http://www.behindthename.com/pnl/56287