4) Add Zombie Dirt
Zombies have no use for cleaning up after they shamble out of the grave, so why not add "dirt" to this look? Smear the zombie dirt around the cut, below the eye and running down the cheek. The darker spots of dirt will also mark where to put sickly black zombie blood later on.
5) Set the Makeup
Look at your face and add any more dirt or bruising to look sufficiently undead. Once all the final touches are made, set the makeup with powder to keep everything in place while you're hunting for brains!
6) Finish the Costume!
Add details like black lips, tooth paint and, last but not least, dribble black zombie blood around the wounds and below the eyes. You'll look fantastically gore-smattered while you're marauding for braaaiins!