This artwork was commissioned by me and drawn by the talented Substance20: Twitter, Pixiv
I have permission to distribute this work.

This drawing depicts a gijinka (anime girl humanization) of the Heart of Lothar, an original weapon concept from my Doom rewrite fanfic "Day of Wrath."
Originating from a single screenshot in the earliest Doom alpha (with an unknown appearance or function) the Heart of Lothar has been contextualized in "Day of Wrath" as a demonic superweapon comparable to Doom 3's Soul Cube or Artifact (also called the Bloodstone or Heart of Hell).
Appearing as a beating demonic heart floating within 3 concentric spinning spiked rings, the Heart feeds on the souls of slain opponents to power up a devastating spectral projectile (which heals the user for damage done).
The Heart is found beating atop a stone column, a reference to a prop in classic Doom and Doom 2016.

"Day of Wrath" is primarily posted on SpaceBattles.
Be sure to check out our official subreddit at r/DayOfWrath.
Everyone is invited to join our Discord.

Source: https://www.deviantart.com/infinitypilot/art/Heart-of-Lothar-gijinka-Day-of-Wrath-965646029