Colour Mixing

Today I have been practising mixing colours. I have been trying to mix skin colours considering I am doing 'people'. I have been mixing the colours red, yellow, brown and white to create different skin tones.

 

After mixing the colours I applyed them to my hand to try to get the best colour possible. The best colour I got today was this one (bottom of the second finger to the left..) But skin colour has so many difficult tones so I will find it difficult to do a whole face.