"THANK YOU VALVe FOR MAKING THIS MASTERPIECE, BOTH FROM THE CHARACTERS TO THE GAMEPLAY! MAY YOU LIVE FOREVER!!! (or at least another 10+ years hehe).
(I put l4d1 folks in there because I saw that both series have the same release date and release month, only l4d1 is a year older)

Artwork by me.

Withhout survivors ver. (full graffiti & doodles):
https://drive.google.com/file/d/1XKVilymdCdNsJWvaYh22mW3NfO_uqJ2P/view?usp=drivesdk"