Seductive Seclusion
My depressions seem to manifest themselves in a much more structured setting. They're usually of landscapes devoid of life. Or of a single bit of life completely isolated from everything else, often a tree. I'm not sure exactly why I feel a tree personifies loneliness best, but I'm sure some psychologist could deconstruct and analyze the shit out of it.
I do know the settings are meant to convey that depression is a kinda dialectic. It's simultaneously excruciatingly painful and traumatic as well as achingly seductive and serene. It's why you sometimes get lost in it. Stuck. Paralyzed. It feels like your thoughts are lulling you with their lovely siren song...and breaking away from its pull takes intense willpower.