Lil Kim -- BOARD UP THE WINDOWS ... Zombie Girl Sues

Lil Kim is on the brink of a zombie apocalypse ... the makeup artist who accused the rapper of stealing her undead face has now filed a lawsuit ... demanding $150K minimum.

We broke the story ... Canadian artist Samantha Ravndahl vowed to sue Lil Kim after the rapper allegedly lifted her zombie image off Reddit and used it to hawk her new album. Samantha demanded a full take down from Kim's social media platforms ... but seems Kim blew her off.

Now it's no more Miss Nice Zombie ... Samantha has followed through on her promise, suing the rapper as well as the photo-sharing website WhoSay.