This is an Illustrious lora for Rocky Desert style backgrounds. Rocky Deserts are deserts that are rocky. Not much to say beyond that.
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 ( RoDes, rocky desert, ).