Biggest congratulations!
[name_f][/name_f]Your list is gorgeous so many beautiful names this is going to be hard to whittle down 
Looking at your combinations I really love the [name_f]Evangeline[/name_f] combinations [name_f]Rose[/name_f] [name_f]Evangeline[/name_f] is just stunning with a very pretty romantic name. I also love [name_f]Opal[/name_f] [name_f]Evangeline[/name_f] she’s bewitching, melodic and works with the older girls names.
[name_f][/name_f]Your combinations with a vintage feel that I think are stunning are [name_f]Verity[/name_f] [name_f]Iris[/name_f], [name_f]Dorothy[/name_f] [name_f]Maple[/name_f], [name_f]Susannah[/name_f] [name_f]Eirlys[/name_f] & [name_f]Eulalie[/name_f] [name_f]Pearl[/name_f]. However I wouldn’t associate them with your older kiddos they do feel stylistically different.
[name_f][/name_f][name_f]Patience[/name_f] [name_f]Willow[/name_f] & [name_f]Prairie[/name_f] [name_f]Annabelle[/name_f] have that eclectic word name vibe however I do prefer [name_f]Prairie[/name_f] [name_f]Annabelle[/name_f] as I feel she’s less wordy.
[name_f][/name_f][name_f]Apolline[/name_f] [name_f]Laurel[/name_f] feels bright, striking and elegant I think she’s definitely the right vibe. I also love the nickname [name_f]Lola[/name_f].
[name_f][/name_f]Moving onto your individual names and my personal favourites from this list are
[name_f][/name_f][name_f]Sylvie[/name_f], [name_f]Clover[/name_f], [name_f]Lorelai[/name_f], [name_f]Liliwen[/name_f], [name_f]Maylily[/name_f], [name_f]Rosannah[/name_f] (prefer Rosanna), [name_f]Rosenwyn[/name_f], [name_f]Rosemarie[/name_f], [name_f]Mercy[/name_f], [name_f]Ottilie[/name_f], [name_f]Jemima[/name_f], [name_f]Imogen[/name_f], [name_f]Adelaide[/name_f], [name_f]Dahlia[/name_f], [name_f]Amabel[/name_f],
[name_f][/name_f][name_f]Amelie[/name_f], [name_f]Arianell[/name_f], [name_f]Azalea[/name_f], [name_f]Clementine[/name_f], [name_f]Delphine[/name_f] &
[name_f][/name_f][name_f]Jessamine[/name_f].
Potential combinations:
[name_f][/name_f][name_f]Clover[/name_f] [name_f]Adelaide[/name_f]
[name_f][/name_f][name_f]Maylily[/name_f] [name_f]Imogen[/name_f]
[name_f][/name_f][name_f]Mercy[/name_f] [name_f]Rosannah[/name_f] or [name_f]Mercy[/name_f] [name_f]Jemima[/name_f]
[name_f][/name_f][name_f]Sylvie[/name_f] [name_f]Clementine[/name_f] or [name_f]Sylvie[/name_f] [name_f]Rosenwyn[/name_f]
[name_f][/name_f][name_f]Azalea[/name_f] [name_f]Amelie[/name_f]
[name_f][/name_f][name_f]Dahlia[/name_f] [name_f]Amabel[/name_f]
[name_f][/name_f][name_f]Liliwen[/name_f] [name_f]Delphine[/name_f]
[name_f][/name_f][name_f]Lorelai[/name_f] [name_f]Jessamine[/name_f]
The names I’m personally loving for your sibling set are [name_f]Opal[/name_f] [name_f]Evangeline[/name_f], [name_f]Prairie[/name_f] [name_f]Annabelle[/name_f], [name_f]Apolline[/name_f] [name_f]Laurel[/name_f], [name_f]Maylily[/name_f] [name_f]Imogen[/name_f], [name_f]Sylvie[/name_f] [name_f]Clementine[/name_f] & [name_f]Mercy[/name_f] [name_f]Rosannah[/name_f].
[name_f][/name_f][name_f]Hope[/name_f] this helps