Hmm, there's a couple of differences off the bat:
-the hairstyle - not that it couldn't change later on.
-the forehead gem.
-ears. That design is often used for demi-humans, like the half-elves, dwarfs, demons, lamias... Paula's haven't been shown - at least not yet.
Likely not Zulu, but I think the bottom-left girl could pass for her with shorter hair, plus without the hairband and ahoge.
Top-right looks to be a dark elf.
Bottom-right girl is Suzu.
It's been lingering in the back of my mind why these 4 are here and highlighted, and not the 4 Heavenly Kings(Mary, Marl, Alice, and Fine) instead. Heck, there's 3 other ladies in the back, and one of them is Zayd(on the right).