The theme of "Ode on a Grecian Urn" focuses on how art is eternal, the theme of "Ozymandias" focuses on c. things change. "Ozymandias" is a symbol of power, ambition, pride and also shows that things just don't last forever.
Im pretty sure it would be the burmese natives are following him as he tries to find the elephant because they thought the elephant was boring at first