No one mentioned this specifically, but as someone who's dabbled in animation a bit... Power lines are fantastic for selling depth / perspective. The poles are

No one mentioned this specifically, but as someone who's dabbled in animation a bit... Power lines are fantastic for selling depth / perspective. The poles are long and slender vertically as are the wires horizontally. When you parallax, it's a nice way to have a mid-ground layer that doesn't obscure too much of the background and naturally pokes up above shorter foreground elements. Not saying the other thoughts re: theme etc aren't valid. Just something else to consider.