This is an Illustrious style lora for the character Ultron from Marvel Comics. Specifically the look of Ultron 14 in the early 1990s from around 1990 to 1992. In this era he gained his 14th form, also known as his Ultron Ultimate, to battle the West Coast Avengers. While previous looks changed gradually over time, the 14th form is the most dramatic change thus far with a semi endoskeleton look, large increase in height to ten or so feet, and a great increase in width for his upper body. This short time has him being more violent than usual doing things like using his nanoswarm bots called Bytes to consume a person alive, and changing a hero into a completely robotic supervillainess. After this his look would only become more modern and sophisticated in quality and design from artists starting to use computers and art programs in comics.
A weight of 0.85 to 1.35 works well with this with most models with best results around or near 1.35. Sampling Steps of 15 to 35 works well with most models, as does a CFG Scale of 5 to 7.
Prompts for this lora are ( Ultron 14, muscular, robot, ).