Name for Rowan's sibling

[MumOnACornishFarm]

Suggestions and thoughts please on the following:

Fern/Maisie/Lola for a first name, Isabel/Astrid/Beatrix for a middle name.

Kit/Oscar for a first name, Harry/Benjamin for a middle name. We're more stuck for boys names than girls this time around

Worth mentioning that they will have a four syllable double barrelled surname too. So there's potential to be a bit of a mouthful

Nameless tes, we are tripping over Jago's down here, they are 10 a penny! Nice name though.
Oooh interesting pieceofpurple Marnie has been on and off my list a few times! I really like it a lot, partly because I'm a Hitchcock fan, but it's a very pretty name that I don't ever come across. Not sure my partner will go for it though.

Marnie Also means 'of the sea' so still a nature theme. It's a name I love