She is going to be a green girl (but not an Orion!).  I am not going to stop with this skin because it's too unvaried, and I still haven't figured out how to make the places that are pinker on a human greener on this yellow skin, and Reciecup makes such fantastically detailed skins that I don't want to waste that--this skin is red in all the right places, which means I must find a way to make it green in all the right places but keep the yellow where it needs to be.  Testing with a single-hued yellow skin with underlying blood-green diffuse yielded me this awesome goldy-green, though, and I love it.

Now the lacrimals look too green again!  To me, anyway.

I used a lip mask to put a simple color (my blood green) at half strength over just the lip area, as well as a little bit of gloss, and I think that is a much nicer shade for her. She's not a fancy lipstick sort of gal anyway.  I'm going to feather that lip mask in to be whiter at the center so her lips are more of a bloody green toward the inside edges.

Left the original human skin tone on everything but the face, for comparison and contrast.