Here is a alpha-mask for the lips. The cycles node-setup is the same as for the smoky eyes: http://www.makehumancommunity.org/conte ... _eyes.html (thank you Grinsegold for this idea). Just a slight difference in the setup: Do not plug the color output to color2 of the MixRGB-Node, except you want gothic lips. Use color2 to set your desired lip color instead.
A good normalmap for the lips is missing. Perhaps someone could provide one.
Alphamask: