Juliana is alright, though I prefer
Julianna. I don't like how it rhymes with
Luana.
Phoebe is very pretty, as is
Felicity. I'm not as fond of
Ebony, but it has its charm.
I like both
Lenox and
Nathaniel, though not as a sibset.
Abel and
Jacob are alright, nothing special.
The last sibset sounds rather dated and the names aren't my style.
masculine list:
https://www.behindthename.com/pnl/191050/124079feminine list:
https://www.behindthename.com/pnl/191050/124080