Valeera's an Elf? Huh. Doesn't really strike me as such, but okay, I'll take your word for it.
Guess none of this has ever really occurred to me to think about before because, well, I don't really think of any of them as characters, just portraits, since as mentioned I only play Hearthstone, not any Warcraft games (briefly played WoW to get Liadrin's portrait during that promo, didn't like it; have never played the others). The League of Explorers and various adventure villains I think of as characters since they've had in-game stories in Hearthstone, but Jaina and the other eight (and most of the alternates) have never had anything like that.