What am I talking about, NameChangeDestroyer?
These names are pretty, and lots of people will like them, but they will think they are quite unusual and use them for their baby dd.
By the time the DDs go to school they will find that many other girls have the same name.
I'm not saying 'don't use them', I'm saying that the names are getting more popular, so don't be surprised if they end up in the top 50.
I like Astrid very much - it is ladylike and cute and would be fine for a princess (Hi Kate!) or someone who's more ordinary.