The main illustration will be an open mouth, dripping with saliva. It isn't rotten or decayed, but can include blood. The mouth must be wide open, baring teeth.
Within the mouth is a silhouette of the four main characters of the book, all standing in a group:
Aaron - male, white, average size, short hair (lab technician)
John - male, black/African American, athletic, shaved head (security guard)
Jenny - female, white, athletic, crew-cut (soldier)
Imran - male, Indian, slim, tall, medium length hair (hazardous waste cleaner)
Aaron needs to be at the front.
The four characters are carrying melee weapons:
Aaron - crowbar
John - two knives
Jenny - cricket bat
Imran - wrench
The zombie mouth should be dripping saliva/drool below the mouth.
The design should be crisp, clear and uncluttered. Illustrations of the mouth and characters preferred, rather than anything photorealistic (but open to the possibility of a more realistic mouth with illustrated silhouettes of the characters).
Colour scheme - I was thinking black white and red, but I'm open to ideas and don't want it too dark.
Title at the top
Sub-title at the bottom