I think
Iris,
Alba and
Junia looks best.
Beata seems too dowdry and old-lady-like, while
Iris,
Alba and Séfora doesn't gel quite as well. As for the popularity, of course. I don't think there's an issue.
I like
Edmund Bruno,
Marius Caspar &
Leopold András. I think
Edmund,
Marius and
Leopold look better together than the rest.