I love that the middles are more classic and bring the more first names down to earth a little! I love the first names too, and think this is a really good sibset! My opinions on each name individually:
[name_f]Djuna[/name_f]- I like it but would question whether it should just be spelt [name_f]Juna[/name_f]
[name_f]Miriam[/name_f]- love it
[name_f]Ione[/name_f]- Pronunciation might throw people off a little (I would think it was eye-own) but once people know the pronunciation it looks and sounds pretty!
[name_f]Astrid[/name_f]- I don’t find this one as feminine as the other middles, but apart from that I like it!
[name_u]Adair[/name_u]- sounds a bit like “add air” to me (as in “add some air to that”) I would probably change it to something with a similar sound but not exactly the same
[name_f]Katarina[/name_f]- I like this one
[name_u]Artemis[/name_u]- I personally find this one a little pretentious, but with the nickname [name_m]Arrow[/name_m] it’s fine!
[name_f]Jane[/name_f]- I love it! Classic and timeless
I love [name_f]Djuna[/name_f], [name_f]Ione[/name_f], [name_f]Astrid[/name_f], and [name_u]Artemis[/name_u] (GREAT way to [name_m]Arrow[/name_m]!). [name_u]Adair[/name_u] is good too, though three A’s feels like a lot. [name_f]Katarina[/name_f] is the only name I don’t like - I prefer it with a C though I really prefer [name_f]Catherine[/name_f] or [name_f]Catalina[/name_f].
Somehow [name_f]Katarina[/name_f] seems longer and different than the rest, but it’s not a big deal.