This is a Lora model of the character KOSMOS from the Xeno series of games.
You can try many different base models, but some base models will be less effective.
Usage
These are my settings I always use it is recommended but not essential;
Steps: 20+
Sampler: DPM++ 2M Karras/DPM++ SDE Karras
CFG scale: 5 to 10