Thanks for the complements!
For the zombies I used Reaper MSP paints, I can't remember what color I used for the skin, I'll have to take a look at the minis when I get home. I wanted an fast & easy painting method for these, since I have a lot of them to do. I used Games Workshop black spray primer, then painted on the base coats, and one coat of highlight. I didn't bother to shade, since the wash would do that. Then I washed the whole mini with Games Workshop's sepia wash. I did not highlight after the wash since I wanted a dark look to the mini. Then I used some green wash in spots for a rotten/moldy look. For dried and "diseased" looking blood I painted some wound spots with transparent EDIT: raw burnt sienna ink. For fresher blood at the center of the ink, I used Tamiya Clear Red paint. Lastly I did the skin in the recesses around the eyes with Reaper Alien Goo paint (from their kickstarter, may not be available yet) and then highlighted the eyeball with white. The bases had some pebbles super glued to them, then covered in white glue and sand poured over it. The grass is winter tufts. All in all you don't really have to be to neat with these after you get the base color coat on.
Hope that helps.