Tanya Von Degurechaf is the main character from “The Saga of Tanya the Evil” (“幼女戦記”, aka “Youjo Senki ”).
Originally she was a salaryman who was murdered in 2013 and then he was reborn as a girl living in an alternate version of Europe during the late Interwar period. At just nine years of age, Tanya enters the Empire’s Mages troops and is promoted to Second Lieutenant. Her talents, strategies, efficiency, and ruthlessness make her a useful asset for the Empire and a threat on the battlefield. Since she graduated from the War College as one of the twelve knights, she’s been granted the title of von. [https://youjo-senki.fandom.com/wiki/Tanya_von_Degurechaff].
You can follow the making of this model on my blog: https://www.elgeneralfailure.com/search/label/tanya
The following textures from Lennart Demes (creative commons) are used: ambientCG.com/a/Leather032