Yes, many of them are the epitome of 'poshness', imho.
Cosmo is definitely not my cup of tea!
Cleodie
Florence Poppy - is interesting! Especially
Cleodie.
As for the other names I can see why vintage
Florence and symbolic
Poppy are popular, but
Ottilie and
Freya?
Recently I've read an article about an American couple, who named their daughter
Ottilie:
"If you say it with a British accent, it sounds really good!"' but eventually changed it to
Margot, because no one could remember and pronounce it.
I thought that
Odette is more popular than
Ottilie! Obviously I was so wrong...
Odette is not on the UK chart, while
Ottilie is 122nd in 2020.
And
Freya is 12th! (UK)
Freya is one of those names I just missed, didn't notice coming.