This is an Illustrious lora for Santa Claus. The version of Santa Claus in question here is the vintage style that was popular in the 19th and early to mid 20th century.
A weight of 1 to 1.5 works well with this with most models and depending on certain 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 ( Santa Claus, Christmas, ).