No problem. I use prismacolor pencils, and I always do the initial outlines & shading with burnt ochre, then add a little dark brown or black, not too heavy. Then I add a bunch of layers of peach, pink, beige or light greys (all lightly, adding more & more to certain areas for varying degrees of depth). Then I'll come back in with the dark brown & black, heavier this time & with solid lines around the eyes, nose & mouth. Then I add a layer of beige of the lighter areas of the skin to blend it together.
Hope that makes sense. Feel free to ask other questions if you wish.