From time to time, while staring into the viewfinder, I notice distinctive layers in the landscape and try to accentuate them. Sometimes the layers are truly there, other times they are merely an aspect of perspective. Perspective is a creativity tool; I think of it as if it were another dial on the camera, for instance, turn it to make something appear higher or lower. An obvious example is my photograph Storm Tide.
In the above photograph, I am standing on the shore; the sea is not actually higher than the pilings or the beach, however, it appears almost as if the waves are a looming tidal wave. Another example is Calm Dusk, which I made while standing on a cliff.
Below is a snapshot of my camera set up on the cliff for Calm Dusk. It is obvious the horizon appears higher than the cliff with my tripod. However, sea level is always lower than a cliff (can a cliff’s edge ever be lower than sea level? Probably, but that's not the point.).