|Image Credit: AMC; Designed by Jef Castro|
Hank Schrader is the third main character to die.
The posture Walter gets into after Hank's death is similar to Gus's posture after Max Arciniega's death. Walt and Hank are also brother-in-laws, just like Gus and Max were brothers in some form or another. This is also reminiscent of a picture portrayal of the poem "Ozymandias".
The pair of pants Walt passes while rolling his barrel are the same pants he lost while driving the RV, at the beginning of the pilot episode.
The final shot is a stray dog crossing Walt's path away. As Gale was the "Problem Dog" and Jesse the "Rabid Dog", Walt has become the "Stray Dog" having effectively lost his home and family