I asked Firefly to use a reference image and the prompt was not followed at all. It changed the background in the image from desert plants to multi-colored underwater coral

The image I was trying to emulate is an outdoor scene outside a home of a truck. I asked the prompt to remove the truck and imitate the image. The image that was offered from Firefly shows a pink and blue pickup truck that seems to be underwater with coral in many colors around it and floating creatures. A pretty extreme miss on the prompt