The first Furiosa showed her when she was on her way away 
from Immortan Joe; this one shows her when she's on her way back. The easiest way to tell is that she's cleaned off her Imperator grease/paint (heh - "greasepaint"), leaving her face bare. That's great for differentiating the two figures, but it's not great for this figure in particular. Mystery Minis' simple, cartoony style makes her so androgynous the toy's barely recognizable as who she's meant to be. If not for the mechanical arm, you might not have any clue who or what this was.
The other figurine had a rather staid pose, just standing there, angry but restrained. This one is more dynamic, with her little golden Webley & Scott Signal Pistol pointed out in front of her, and her metal arm held behind for balance. Her clothes are mostly the same, but this time she's got her dark scarf/gaiter around her neck, and a pair of goggles up on her head. She's also been painted with a much angrier expression, 
her teeth gritted in pure anger.
When the Mad Max Fury Road Mystery Minis came out, the back of the boxes said everything was in a 1:12 ratio, which was utterly false. Doing the math, fans pieced together that both Furiosae were 1:6, meaning there were four of her in every box. And sure, she's a major character - the major character - but couldn't one of them have been a little rarer than the other? Wouldn't three per case have been enough? So there's the question for you: imagining you're Funko, of the two Furiosa Mystery Minis, which would have made the "rare" one?
