What if these were sisters…what do you think of their names individually and together?
[name]Allegra[/name] - [name]Allie[/name]
[name]Persephone[/name] - [name]Percy[/name]
[name]Genevieve[/name] - [name]Eve[/name]
[name]Victoria[/name] - [name]Tori[/name]
Together and individually they are lovely. I do however prefer [name]Neve[/name] as a nickname for Geneveive. 
Honestly i would feel bad, [name]Allegra[/name] just reminds me fo the allergy meds. But, [name]Persephone[/name], [name]Genevieve[/name] and [name]Victoria[/name] are much more historical formal names. it would feel like one girl got the complete names and the next just got the mini name of their sibling.