Mike it really is an excellent piece. Some minor casting problems, still it is a must have IMO.
So basecoat with a mix of gold oxide, jaune brilliant, fawn, purple madder, brown madder and basic skintone from josjona's acrylics range.
After this is done i use burnt umber to paint the shadow of the upper eylid, the lips, the nostrils and that of the hair as any mistake is easy to correct at this point.
The eyeball is painted with a mix of basic skintone and a touch of the basic color, highlighted with titanium white.
Finally the iris disc is painted with black oilcolor because i find it easier to manipulate.