Above
Azundris as Poison Ivy, Halloween 2009, West Hollywood. MAC body make-up (chromacake, True Chartreuse)

Right
First mockup for a light green variant, after test shoots with the darker Kryolan make-up left me unsatisfied.
Yes, silly outfit. : )
I wasn't sure whether to go to the goth club, or to the '80s revival party, so ended up dressing for both.: )
That's not the point, though, the point is that I could so pull off green skin!
It's really all in the shade.
So, if I can do it and look OK, then a woman like Poison Ivy could be totally stunning in green! Word!