This artwork was commissioned by me and drawn by the talented Substance20:
https://twitter.com/S20_TBL
https://www.pixiv.net/en/users/18617250
I have permission to distribute this work.
This drawing depicts a gijinka (anime girl humanization) of the Sentry Bot from Doom 3, as it appears in my Doom rewrite fanfic "Day of Wrath."
"Day of Wrath" is mainly posted on SpaceBattles
https://forums.spacebattles.com/threads/day-of-wrath-doom-2016-eternal-rewrite.846388/
And AO3
https://archiveofourown.org/works/26011756/chapters/63245599