(the snake trying
to escape the pursuing stick,
with sudden curvings of thin
long body. how beautiful
and graceful are his shapes! )
which poetic device?

Imagery

Explanation:

The poet uses a description that is appealing to the senses.

themselves

an intensive pronoun is a pronoun that ends in self or selves, such as himself, herself, themselves, yourself, ourselves. since band members is a third person plural, the correct intensive pronoun would be themselves. if the band was talked about as a collective noun, itself would be the appropriate intensive pronoun. intensive pronouns are used to add emphasis to the noun it's modifying which is why it directly follows it.