All the "yellow" bits are skin it's the same colour on her face and wrists. I am glad you like it Jamar I wanted to do this last year when I got the Irina Spalko figure but instead turned her into Madame Umbra.
I just saw this on CobraIsland.
http://www.cobraisland.com/

This is the paint I used mine seems to be separating though even after being shaken.
I have been looking at other Red Dawn characters but from what I can see their heads look like established characters so would need taking off the original figures which is something I am not so sure I can do properly.