An epic is a poem in which a hero goes on a great journey and saves people. The gods are there to protect the hero and control whatever they can (i.e Poseidon- the water, Aphrodite- love). They assist the hero sometimes and therefore contribute to their success. Hope this helps!
It's certainly sensory. And it's figurative too. I think I'd pick figurative because the central piece of language is a simile. That's pretty good use of language when you compare the bobbing heads of flowers to helmeted soldiers.
I would say D. Because authors always try and make their characters have a strong and unique voice to make their writing piece more comforting or relatable