Awesome stuff! Psstt... when showing off a normal map keep the diffuse gray and put the normal map in the bump slot. That way we see the effect but aren't confused by the colors.
Awesome work. I love that your characters aren't shooting for photo-real and have such personality to them. Do you paint your diffuse in Photoshop or ZBrush. There's great attention to details like how the chick's all freckly and then has the tan line around her neck. Keep 'em coming!