I like a lot of your girl names - my shortlist would be Saskia, Cecily and Bridget
I think you need to rethink your boys list, although Joshua is nice
Beatrice - nice but a bit overused
Bridget - I really like it.Might be marmite
Cecily - Lovely and fairly unusual
Cordelia - elegant. No great short form though and as it will get shortened that would put me off
Flora - very nice, quite popular
Giselle - NO - no girl wants Jizz in her name
Callista - how would you spell this name - Calista, but I think either is fine. If you want the Callie nn then I think Caroline or Calliope are nicer
Romilly - meh, blends with all the Rose, Romy, Rowan, Rory, Romans around
Rosina - Rose names are very overused.
But if you want one Rosanna or Rosemary would be better options, Rosina sounds like one of those weird dolls
Saskia - love it, elegant and yet sassy
boys:
Amaury - sounds like woman’s name (Amelie, Avery etc) how about Zachary or Barnaby?
Clarence - too early to come back. How about Ernest or Arnold?
Drury - no, very awkward to say
Emil - this is traditional spelling where I am - it’s not nice, also blurs with all the endless girls Em names, plus the fact on paper people will mistake it for Emily as it’s so unusual here
Jory - like Jury?? I think like Drury it’s hard to say and he’ll be forever spelling and repeating it. Jules, Jerome, Jethro or Jago maybe?
Joshua - nice, although prefer Josiah
Knight - I like how its similar to night - I like it only as middle - fine as a middle name, people will just think it’s a family surname.
Lucius - because it’s unusual it rather brings Lucifer to mind, would go for the more familiar Lucian
Percy - wet
Remy - inexplicably rising in popularity, but l still think only for a 60 year old French bloke
Roland - ok
Tennyson - like this more than Alfred, but worry it's too surnamey - I’d worry more about what the nn will be, because it will get shortened - either Sunny (ok I guess), or Tenny (a bit weird)