River
After Schofield escapes by jumping in the river, he floats through the river to reach a serene scenery of flower petals floating through the air. This imagery conveys to the audience a time of calmness and a time of rest that Schofield earns after having that intense run through the remains of the enemy-occupied city. But this imagery is subverted when Schofield tries to reach land but has to climb over floating dead bodies, again signifying the horror of war to the audience.
Blake's Death
The imagery of Blake's death is horrifying. In a moment of betrayal, he gets stabbed by the German pilot whom he tried to save, and the color completely leaves his complexion as death approaches. Schofield tries to get him to stand, so that they can find an aid station, but Blake is too far gone.
Lost Soul
Schofield reaches a forest after going through many ordeals and being pushed to his limits. He finds his fellow soldiers sitting there in a group while a single soldier sings "Wayfaring Stranger." Schofield takes a seat beside these soldiers and rests. This imagery signifies how tired Schofield is and the imagery mixed with the lyrical music also represents the feeling of being lost and longing for home that our protagonist is currently feeling.
Under a tree
The film begins with the image of Blake and Schofield getting a moment of rest underneath a tree. They awaken to the bleak reality of war, after having had a moment of respite. Then, at the end, Schofield sits under a tree, now alone, and looks at photographs of his wife and daughters, before penning the promised letter to Blake's mother.