Don't like
Finley as a fn at all... and
Rowan's kinda ugly as a fn... It's just fine as a surname, but somehow it just seems ugly as a fn and worse on a girl.
George is good.
I wouldn't sticke
Finley or
Rowan in any combo except as a surname or an extra mn honouring the maiden name of a female relative to keep the name in the fam.