All excellent, but my preference goes to #4, because of the shrub. It conveys more about the environment.
The "shrub" looks like a tumbleweed, a very interesting plant in the Central and West parts of the U.S. These grow about waist high (depending on conditions), usually on fairly desolate and barren ground. Every fall they dry out, and when the ever present wind hits them they snap off at ground level. Since they are spherical they roll along the ground until something catches them (such as a barbed wire cattle fence.) As they roll along, they drop seeds. In places where they grow thick, they can pile up against a house et c. and be a pain to remove. This one seems to have rolled along and dropped into the slot, or is the offspring of one that did.
Kent in SD