Not bad so far! Here are some
redline suggestions and I've got some coloring tips for ya too.
It usually helps to start with a background color before you start coloring your character, and when painting realism don't be afraid to go crazy with your colors. Skin has your apparent warm tones (brown, pink, orange) but it also has cool colors mixed in--usually in the shadows. I usually add a super pale blue or green to highlight skin. What that does is subtly compliments the warm tones in skin.
What do you use to color? Photoshop? Tablet? =] If you want more information or tutorials I'll be happy to help ya out, just lemme know <3