Here we have more of the betwixt-and-between colors, Butter London No More Waity, Katie and Formula X Cosmic:
Cosmic is a weird, sort of shifty blurple thing. I don't think I've actually worn this, I keep forgetting. But Vampy Varnish's swatches are making me think I should try.
I don't think either one of these is currently available, although I could be wrong.
2016 Cosmic mani