[name_f]Ramona[/name_f] nn [name_f]Romy[/name_f] is pretty much perfect with big sister [name_f]Matilda[/name_f] nn [name_f]Tilla[/name_f] (Tilda would be so pretty too).
To me, [name_f]Matilda[/name_f] and [name_f]Mabel[/name_f] are a tad matchy-matchy. It would probably be my second choice.
[name_f]Mina[/name_f] again is a bit matchy with [name_f]Matilda[/name_f] (Mina could almost be a nn for [name_f]Matilda[/name_f]) but to me, also feels a bit insubstantial comparatively. How about [name_f]Willamina[/name_f] (or [name_f]Wilhelmina[/name_f]) nn [name_f]Mina[/name_f], or maybe [name_f]Jessamine[/name_f] nn [name_f]Mina[/name_f]?
[name_f]Matilda[/name_f] & [name_f]Jessamine[/name_f] would be a stumning pair!
I think if going [name_f]Lola[/name_f], no need for [name_f]Lou[/name_f]? But [name_f]Tilla[/name_f] and [name_f]Lola[/name_f] pretty close and again [name_f]Lola[/name_f] seems a bit lean compared to Matilda.So how about [name_f]Louisa[/name_f] (which again more comparable to [name_f]Matilda[/name_f]) and then you can nickname to either or both [name_f]Lola[/name_f] and [name_f]Lou[/name_f]?
Otherwise [name_f]Dolores[/name_f] or [name_f]Penelope[/name_f] nn [name_f]Lola[/name_f].
Or [name_f]Rosemary[/name_f] nn [name_f]Romy[/name_f] or even [name_f]Romina[/name_f] nn [name_f]Romy[/name_f] & [name_f]Mina[/name_f]!
Overall I’d think about [name_f]Jessamine[/name_f], [name_f]Louisa[/name_f] & [name_f]Romina[/name_f]!