I adore Zenobia (I see a deep purple), Atalanta (I see scarlet), Gwenllian (sky blue) and Belphoebe (navy blue). I do love Olympia, but sadly it is too weird with Aphrodite.
I second Ariadne, and here are some other suggestions:
Murasaki (it's the Japanese word for purple and Lady Murasaki was the first novelist in history)
Calista/Calixta/Calixto (means most beautiful so could definitely stand up with Roo's name)
Bellicent - this is stunning. has some great sounds. i have never heard it before. may add to my GP list.
Ceridwen - love this
Circe - love the double s sounds
Hermione - Have always loved this name.
Isolde - Love the name, love the story. Have it on my list paired as Ariadne Isolde
Jezebel - always kind of liked this name. I had a best friend with this name so I don't associate it with the negative. I do picture it on someone with olive skin and dark hair.
Morgana - another one I have always loved, but Especially after Katie McGrath's portrayal in the tv series Merlin.
Nimue - again a name i have always loved.
from your list...
Atalanta - I like it but your concerns are valid. I'd probably take it off the list in favor for "the one"
Befana - feels silly and insubstantial to me.
Bellicent - same.
Belphoebe - love it!
Bradamante - the opposite of Befane and Bellicent, this name feels too heavy.
Ceridwen - I love it but if the husband's not feeling it, then maybe this just isn't it.
Circe - also love.
Cleopatra - definitely a bold choice, but so was Aphrodite. It's nms but nothing wrong with it.
Gwenllian - love!
Hermione - it is cute and seems to fit your style. If you don't mind the HP references, it sounds wonderful. My only concern (coming from my own childhood experiences and this could also go for Hypatia) having one child named after a goddess of beauty and love and the other more commonly known as a plain brainy girl...it can cause resentment between sisters.
Hypatia - Admirable indeed! Love her.
Isolde - Isolde is pretty but there's not a lot to her. Middle name potential.
Jezebel - Honestly, I think of the website. Meh.
Lyonesse - I like the Arthurian connection but this feels more middle name to me.
Lysistrata - I'm a fan of Lysistrata.
Morgana - LOVE.
Musidora - It is cool but "Muse" sounds better to my ears.
Nimue - Love
Olympia - Too much.
Ourania - Nope.
Pandeia/Pandia - Nope.
Serafina - This sounds nice with Aphrodite.
Sunniva - I really like this one! But if you already know a little Sunniva... :(
Tinuviel - middle name.
Xenia - There will be confusion.
Zenobia - not my style.
My personal favorites: Belphoebe, Ceridwen, Gwenllian, Lysistrata, Morgana, Nimue and Sunniva.
My favourites are:
Belphoebe - however, she might constantly have to correct people that no, it's not Phoebe. Also, does this mean you would get stuck in the PH name pattern? I doubt it, but it's worth a thought.
I know someone named Alexzena. It's probably not your style with the whole Alex beginning, but I just thought I'd mention it as it's similar to Xenia/Zenobia. Also, I love that you named your daughter Aphrodite. It's so brave and gives your daughter a wonderful namesake. I was just wondering how people react when they hear it? Have you gotten a lot of comments on it? I admire you for your courage in using names you truly love and stepping out of the boundaries!
You have such unique taste in names! May I suggest Xylia? Also Greek, meaning wood dweller
For the niñas:
My favorites are
Circe- I like this a lot. Spunky and cute but meaningful literary ties.
Nimue- I didn't think I'd like this one, but I do. Holds her own with Aphrodite too.
Zenobia- hands down my favorite. Me and this name have come a long way. But I just love Z names and this one has become so beautiful to me. Paired with Aphrodite I think it's stunning. And stealing from your boys list, the idea of an Aphrodite, Zenobia, Rainier sib set just thrills me to my toes.
Morgana- ooooh. So lovely and smooth and decadent. It's in a tight race with Zenobia.
These are my top favorites from your list -- I LOVE Zenobia with Aphrodite!!
My faves from your list:
I'm loving Cleopatra, Hypatia, and Zenobia! Any of those would be beautiful alongside your daughter's name. Honestly, I'm really itching for someone to be cool enough/brave enough to pull off Cleopatra. (Im not it!) It's such a fabulous name and I'd love to meet a Cleopatra!
Again, congrats! Here's my favorites with Aphrodite (will make combos when you're ready):
Belphoebe -- I adored this name last time and still do. I think it works wonderfully with Aphrodite
Cleopatra -- Two strong women who weren't defined by men. I know a Cleopatra and I think it's stunning and works really well with Aphrodite
Gwenllian -- Never heard it but love it! It sounds lovely with Aphrodite and love the history
Lyonesse - I think it sounds really cool, it's got the Arthurian thing going on.
Morgana -- One of my favorite names I'm not using. Love it a lot with Aphrodite
Sunniva -- Love the name and I don't think it matters you know some if they aren't friends. Sunny as a nickname just seems perfect next to Aphrodite for some reason
Tinuviel -- My favorite on the list with Aphrodite. Stunning name, stunning story, stunning sound
I'm going to try to think of other Norse names for you to help with your side of things. And I'm going to suggest again...Rohana. Aphrodite and Rohana. I know they share that RO sound sort of, but I think Rohana is stunning and perfect for you, plus it sounds lovely with Aphrodite.