Hello there.... I've done a couple of the "orange" kits and I learned to correct the color by doing a purple internal wash... it seemed to help out just fine. Maybe you can try that as well.
Pat C.
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Current Avatar Teme, the Black Dragon.
Does not play well with others and run with sissors!
others sware by doing a mint green outer wash to colour correct....
i personally have a very different system. I will pounce a thick cover of flesh 08, 07 and pyrrole red 08 - mixed to look soft baby pink in colour. I'll mix this with Achival olis solvent (this thinner does not leave a chalky residue when using the paints thickly as other solvents tend to) to a yogurt like consistency. As said i'll pounce this all over the vinyl pieces and cook-set them. It will set as a light creamy/white base skin tone. I'll then work as normally with thinner paint mixes. I've always had beautiful results using this self formed technique even on the most orange of vinyls.