I don't think
Magdalene and
Raphael are too upper-class or arrogant sounding at all. I love them both.
Raphaela has been going through my head lately for a girl, so I may be biased.
Miriam and
Jonas do sound gorgeous together. They have a more down to earth (no pun intended) feeling than
Magdalene and
Raphael. But I don't prefer one set over the other.
I love both
Nathaniel and judith, although strangely they give me different vibes and so I'm having a harder time placing them as siblings. I know
Nathaniel is biblical, but it immediately makes me think of Mr. Hawthorne and new England Puritans.
Judith does make me think of the Old Testament, so that's where the different vibrations are coming from.
I'm quibbling, of course. If I ever really met a
Judith and
Nathaniel sibling set in real life I'd be very impressed. But if you're asking me here in hypothetical sibling land how I'd like the set, I'd have to vote for either
Magdalene and
Raphael or
Miriam and
Jonas over
Nathaniel and
Judith.