Dark Surface

“It was now a period, tar, railroad, and bitumen; then steel and petrol will begin to take over. The horizon now black, gray, brown and dark in everywhere.”

Two wooden and fire-like objects resting on the pictures are associated with a rifle held in the hands of the soldier in the photo with the wall tape on the right. What might be associated with an abstract scene, rifle a symbol of war or authority? How can wooden objects, arbitrarily dropped on the pictures, link to the soldier in the photo?