This is an Illustrious lora for the Sethan from the JoJo's Bizarre Adventure series, Stardust Crusaders. Sethan is a member of the Egypt 9 Glory Gods, a group of Stands representing ancient Egyptian gods. Sethan is the stand of the character Alessi. In the anime and manga Sethan is basically a living shadow that can do damage to wherever a person is touching the shadow. The shadow form of Sethan can also form into 3D space and is shown to have a dark black body with a red tint. The spike on top of Sethan's head is meant to be his muzzle, as can be seen easier on the few times he makes a side profile. Sethan is based on the Egyptian God Set.
For whatever reason things like a belt, pants, a cape, and sometimes even hair shows up. If given the right prompts such things would not show up as easily. Just look at the sample pictures I made for ideas.
A weight of 1 to 1.5 works well with this with most models. Sampling Steps of 15 to 35 works well with most models, as does a CFG Scale of 3.5 to 7.5.
Prompts for this lora are ( Sethan, muscular, shadow, ).