As a big fan of Joyce I think many fan interpretations have same mistakes, imo.
-Zelara 8 got very narrow lower head, pretty skinny but Joyce face overall is little bit chunky.
-Joyce got big lips while base model got thin lips.
-Another minor thing Joyce lower head is angled, forward which base model is kind of flat.
Skin is Zelara 8 base skin, you don't need to change anything, translucency etc. No make up either.
While I tried to make my version look like game version and I spent many hours doing so, I started to believe Joyce head merged with Zelara 8 and another model.