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

### Instruction:
Change background to a whimsical galaxy scene. portrait of obama riding an unicorn, pixar style, by tristan eaton stanley artgerm and tom bagshaw.

### Response:
'portrait of obama riding an unicorn, pixar style, by tristan eaton stanley artgerm and tom bagshaw, with a whimsical galaxy background.'

### End