[name_f]Gorgeous[/name_f] name! I am seconding the suggestion of [name_f]Thomasina[/name_f]. I think [name_f]Phoebe[/name_f] [name_f]Thomasina[/name_f] sounds better to the ear.
[name_f][/name_f][name_m]Great[/name_m] list, but [name_f]Phoebe[/name_f] is my favorite with sister’s names.
[name_f][/name_f]I think [name_f]Violet[/name_f] goes great too. I like the matching long I sounds in all three names. (Briar or [name_f]Iris[/name_f] instead?)
[name_f][/name_f][name_f]Ivy[/name_f] and [name_f]Heidi[/name_f] sound similar and may get mixed up.