Drawing, skin color combonations?

Im an artist, and ive just bought a Neopiko Skin color set, but it didnt help me out very much, could you help on the combos of colors i can mix from these:

naples yello – 551
blush pink – 555
pink beige – 516
ivory – 550
sunlight yellow – 525*
maize – 524*
light brown – 553
sun tan – 534
apricot – 515
beige – 533
ochre beige – 552
powder pink – 554

if it helps any i do japanese style drawings

* i have trouble figuring out these colors for combining