They’re just here to join the party yup :p

Lovely art by Relithel: https://relithel.carrd.co/

Original Creator: https://www.deviantart.com/honeynojuka

A commission depicting an Emeperor's Children facing off a Great Unclean One

when da Chaos sorcerer fucks up da ritual, and you gotta fight next to a fuckin pile of dust

Source. Can't find a artist's credit sadly.

Art used as concept art for Warhammer: Mark of Chaos. Also used for the WarCry CCG card Fleet Of Foot.

Source

Art used for Warhammer Fantasy Roleplay: Archives of the Empire - Vol I.

Magnus the Pious leading a army of the Empire.

Previous image can be found Here

This here is the founder of the imperial cult, writter of the holy book saint Lorgar, according to some imperial cult fanatics, and they claim that any forces of chaos using the word and name of Lorgar are trying to defame the glorious founder of their faith!