Wanted to delete post
Too me, [name]Finley[/name] [name]Cameron[/name] is all boy. I’m aware that they are both unisex names but on paper, it sounds very masculine. I would suggest either using it as a boy option (alongside [name]Miles[/name] [name]Anderson[/name], which is fantastic!!) or using a more feminine middle name.
I don’t mean to sound negative. I really do think you have a great naming style. 
xx
I’m not sure everyone would “get” the theme, especially since [name]Owen[/name] is not technically Scottish, which gives you a lot of latitude. [name]Miles[/name] is certainly an excellent match. [name]Finley[/name] has some Irish as well as Scottish blood, so you’re pushing the envelope again there anyway – maybe your theme is “Celtic Lite”? [name]How[/name] about [name]Milo[/name]? Not authentically Irish but well-used there. Fun!
When I think [name]Scotland[/name] I think:
[name]Lewis[/name]
[name]Iain[/name]
[name]Cameron[/name]
[name]James[/name]
[name]Donald[/name]
[name]Bruce[/name]
[name]Robert[/name]
[name]Alistair[/name]
[name]Jock[/name]
[name]Kenneth[/name]
[name]Stuart[/name]
[name]Scott[/name]
[name]Malcolm[/name]
[name]Callum[/name]
[name]Clyde[/name]
[name]Walter[/name]
[name]Kennedy[/name]
[name]Campbell[/name]
[name]Ewan[/name]
[name]Gregor[/name]
Since my knowledge of [name]Scotland[/name] is almost entirely based on Braveheart and [name]Billy[/name] [name]Connolly[/name] I would do some research but do any of these appeal? Actually [name]Connolly[/name] could be cute.
My favourite Scottish names happen to be [name]Hamish[/name] and [name]Alasdair[/name].
I do think [name]Miles[/name] sounds good with [name]Graham[/name] and [name]Owen[/name]. It might not be Scottish but the UK-all stars effect isn’t as jarring as, I dunno, Matisyahu would be. And [name]Alasdair[/name] is a bit close to [name]Alexander[/name] anyway.
I love the boy name, but [name]Cameron[/name] kind of throws me for a loop ([name]LOVE[/name] [name]Finley[/name] for a girl, though!) - perhaps a girlier name? That sounds so terrible, but I don’t know that two “unisex” names work, for me. Also, is the ‘a’ middle just a boy thing, for you? Good luck!
Definitely this. [name]Finley[/name] [name]Cameron[/name] is totally boy to me. Try something [name]Cameron[/name] [name]Ariel[/name], or [name]Cameron[/name] [name]Ariana[/name]. Something very feminine. If I was named [name]Finley[/name] [name]Cameron[/name] with two older borothers, I’d feel like my parents expected/wanted a boy and were too lazy/uncaring to pick a really girl’s name.
[name]Miles[/name] [name]Anderson[/name] is great.
[name]Ariel[/name] is a boy’s name to me, lol. [name]Ariella[/name] or [name]Arielle[/name] are pretty for a girl though.
As a Scot living in the Highlands I have too agree that Finley Cameron screams boy.
I do know a few Owens locally so i guess it is being used as a Scottish name so it does fit the theme, Miles on the otherhand really isn’t a Scottish name at all so it really depends how important the theme is too you, it does sound good with Graham and Owen.
Struan (on my shortlist)
Innes (on my shortlist)
Cormac (on my shortlist)
Adair (on my shortlist)
Cairn (on my shortlist)
Hamish (FIL)
Graeme (pn Graham but the Scottish spelling)
Gordon
Mitchell
Ramsay
Neill
Alasdair
Findlay
Donald
James (Husband)
Fergus
Campbell
Cameron
Callum
Connor
Ewan
Lyndsey
Lesley
For girls
Fiona
Shona
Bregha
Iona
Isla
Eilidh
Heather
Ailean
Isobel
Mhairi
Morag
Ailsa
Alison
Moira
Elspeth
Bonnie
Jean
Nighinn
Ceilidh
Lindsay
Leslie
These are all off the top of my head as names I know are Scottish and are in use locally. Hopefully you can find some inspiration here.
ETA: Just realised I included Graeme on your list when you already have a Graham, really was just be thinking round the men I know ad typing there names!