I do think the person of Notpadme is a hard one to nail down. It looks like we're collectively all over the board here as far as if she's:

1: Royalty, military, enemy or servant.

2: From Alderaan or not.

3: Her relationship to Bail. My first inclination was to make her of an Alderaanian royal family who is betrothed to Bail. I've decided that's maybe too obvious. What if she is Bail's younger sister?

I did like the idea (lost track of whose) to make her have more of Luke's complexion and let Anakin have Leia's.

It's so easy just to retread the Han/Leia relationship here... but the Anakin/Padme relationship is so bland that it's probably best to do retread a good relationship than to invent a new terrible one.

The name that I've been playing around with for her is Valeria/Valaria. I can't decide on the spelling. What do you think?