This is an Illustrious lora for a Sandy Desert style backgrounds. Sandy Deserts are, as the name suggests, sandy like deserts. They have lots of sand, and tend to have sand dunes as well.
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 ( SanDes, desert, sand dunes, ).