Hales7, you and I seem to have the same type of naming style :) I too love feminine, classic names that aren't very commonly used. From your list, I like Eva the best. It is a gorgeous name, however I do agree that it has become a very popular name. With that being said, my favorite name for a girl is Alessia [UH-LESS-E-UH]. I came across this name back when DH suggested the first name Alexandra to me. He's always like the nickname Alex. I like Alexandra because it's classy and feminine, however it is very overly used and a bit harsh sounding IMO. So I started doing a little research on names with a similar sound and I came across Alessia and fell in love. It's a very popular name in Italy but almost unheard of here in the U.S which I love. It's also very similar sounding to Alexandra just a bit softer in my opinion and very classy and feminine. There are also lots of nickname possibilities with Essie and Lia being my favorites. Idk if this name fits your style but I figured I'd give you an option that probably nobody else would :)
Some other classy, feminine and uncommon names that I love..
Hope I've helped and good luck :)
Amelie/ Amelia/ Aemiliana/ Emilia
Rosalina/ Rosalind/ Rose