His work appeared in their first three books, SLA Industries, Karma and Mort, for which he painted the cover.
He returned to SLA Industries in 2019, contributing 3 pieces, including the back cover art, to the source book: Cannibal Sector One.
Langley began his career at 2000 AD on Dinosty with Pat Mills, and went on to work on some of the comics flagship titles, like Judge Dredd and Sinister Dexter.
He has since repeatedly collaborated with Mills, most notably on his long-running series ABC Warriors and Sláine where he is the current artist on both.
[1] Since 2007 he has also got work in the American comic book market providing covers for Marvel Comics, especially those connected with Dan Abnett, who he worked with on Sinister Dexter, leading to a run on the modern incarnation of the Guardians of the Galaxy.