We're leaving this city.. (human sans aus/ Zombie apocalypse)

This is a story of a Zombie apocalypse which the sans au's go through, following in the perspective of either nightmare, Error or a third person dream. They're trying to leave the dangerous city that they called 'safety and opportunity', many shall not leave, others may be lost out of boarder. First story written! Also not good, new updated version.

A group of scientists - kind of including Science but since he's amazing it's not his fault... - made a special completely confusing disease that involved in the death of the brain but not the body. They are separated into different ways of their lives(?)
The bite to eat and the bite of create. One is to feed themselves the other is to carry on their quickly spreading disease.

My art as the cover! Yes it is definitely not the best but it's not the worst!

Characters are sans aus (sorry if it's incorrect or spelt wrong!):
Nightmare/dream - Joku
Killer - Rahafwabas
Error - Crayon Queen
Dust - Ask-Dusttale
Horror - sourapplestudios
Blue - P0pcornPr1nce
Ink - Comyet
Ccino - (no clue)
Red - under community(?)
Reaper - Ren
Geno - Crayon Queen
⚠️Warning ⚠️
Not finished
Bad detail
Gore
Character deaths