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

### Instruction:
"Add a celestial background to the image." portrait of a mystical knight, mystic, spiritual, strange, science fiction, intricate, headshot, highly detailed, digital painting, artstation, concept art, sharp focus, cinematic lighting, illustration, art by artgerm and greg rutkowski, alphonse mucha, cgsociety

### Response:
"Portrait of a mystical knight, mystic, spiritual, strange, science fiction, intricate, headshot, highly detailed, digital painting, artstation, concept art, sharp focus, cinematic lighting, illustration, art by artgerm and greg rutkowski, alphonse mucha, cgsociety, celestial background"

### End