Add to the end of your prompts:
Chaos
Change how varied the results will be. Higher values produce more unusual and unexpected generations.--chaos <number 0–100>
Negative prompts--no <prompt>
Ex.--no plants (try to remove plants from the image.)
Tile
--tile
Example:
Stylize level
-- s <number> or -- stylize <number>
Example:
--s 750
Aspect ratio
-- ar 4:5
Examples: