This experiment with fog and blur made me think I was on the right track for a method of creating the backgrounds in my comics. You can see how it has a feeling of depth and space.
Here it is again without the fog and blur. Now the clutter and detail in the trees gives them equal prominance to the folly in the forground.
my thinking is the depth in the image can be used as a hierarchy to help the reader know what is the most important part of the panel. whilst helping the text be part of the overall composition. The text is on white and is the most important part of the panel. next the reader sees the figure in the foreground who is the next lightest tone. then the eye is lead into the distance. I thought that was a plausible theory.