We have been toying with various girls names for ages and currently liking these two.
We like the fact that Keira is Irish. She will be half Irish (If she is a girl) and her brother is Rory.
I love the original Ciara spelling but I just couldn't deal with the constant mis-pronunciation of it. It's the kind of thing that would drive me bananas. I think the name is so pretty though regardless of spelling.
We like all the shortenings of Alexandra so would just go with what felt right but would try to use Alexandra at first.