I think [name_f]Fiorella[/name_f] is gorgeous. For siblings, I think she works best with [name_f]Evangeline[/name_f], [name_f]Talitha[/name_f], [name_f]Olivet[/name_f] and [name_f]Ariane[/name_f]. [name_f]Fia[/name_f] and [name_f]Lola[/name_f] are good nicknames, but I also like Fior.
[name_f][/name_f][name_f]Fiorella[/name_f] [name_f]Esme[/name_f] is lovely but I am not so keen on [name_f]Cecile[/name_f] at the end.
Other ideas
[name_f][/name_f][name_f]Fiorella[/name_f] [name_f]Esme[/name_f] [name_f]June[/name_f]
[name_f][/name_f][name_f]Fiorella[/name_f] [name_f]Alice[/name_f] [name_f]Jane[/name_f]
[name_f][/name_f][name_f]Fiorella[/name_f] [name_f]Yasmine[/name_f] [name_f]Zoe[/name_f]
[name_f][/name_f][name_f]Fiorella[/name_f] [name_f]Elspeth[/name_f] [name_f]Ivy[/name_f]
[name_f][/name_f][name_f]Fiorella[/name_f] [name_f]Vivienne[/name_f] [name_f]Maisie[/name_f]
[name_f][/name_f][name_f]Fiorella[/name_f] [name_f]Rosalind[/name_f] [name_f]Amy[/name_f]
[name_m]Just[/name_m] a few off the top of my head!