This is an ambiguous figure-ground relationship because the mailbox in the foreground is partially distinguishable, its texture and shadows blend with the background elements, such as the bicycles and the street, creating a visual superposition that makes it difficult to clearly distinguish between figure and background.

 

This is an ambiguous figure-ground relationship because the branches and the sky blend visually, making it difficult to clearly distinguish what is figure and what is background.

This is an ambiguous figure-ground relationship because the shadows of the trees blend with the background of the wall, creating multiple visual interpretations and making it difficult to clearly distinguish between figure and background.

This is an obvious figure-ground relationship because the garbage container and box stand out clearly against the background, without visually blending in with the buildings and street.

This is an obvious figure-ground relationship because the statue and plants stand out clearly against the background of the building, without blending visually.

This is an obvious figure-ground relationship because the tree in the center and the cars in the foreground are clearly distinguished from the background of the building. There is no confusion or blending between the figures and the background, making it easy for the viewer to visually identify and separate the elements of the image.