Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Request: Add a mystical night sky background. Demon Knight of Death, by Artgerm and Greg Rutkowski and Alphonse Mucha

### Response:
"Demon Knight of Death, by Artgerm and Greg Rutkowski and Alphonse Mucha, with a mystical night sky background."

### End