This is an Illustrious lora for Americana interior style architecture.
A weight of 0.85 to 1.25 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 to 7 with most working at around 5.
Prompts for V1 of this lora are ( AmericanaInterior, architecture, interior, ).