Color matched hands

I’ve been playing with color matching hands to my Gen dials over the last few days. I got close enough for my liking, only thing I’m not loving now is the chalky/cracked appearance.

This is a combination of matte acrylic medium, dark yellow ochre pigment, white pigment, Vallejo green pigment, a touch of black pigment, and a few drops of water to thin it out.

Anyone have any tips or tricks for a flatter consistency?