experiments at 11x.
I began with Kat's bodice by using Plaka Yellow Green, but added a lot of Black to make it very dark.
This enabled me (by adding more of the base colour) to lighten the green for the mid-tone...
...and highlight.
Kat's jumpsuit was next. For this, I used Plaka Yellow Brown mixed with White as the basecoat - but I needed two or three coats because of the black undercoat.
Then I added a lot of White for a creamy colour...
...and finally added more White for the highlight.
For Kat's boots and holster, I used Plaka Olive Green - and the same principle applied (i.e. added black for the base colour, then used the olive green as the mid and added white for the highlight).