What is the best definition of the term imagery ?

It means:-> visually descriptive or figurative language, especially in a literary work.

Explanation:

It's also defined as: Imagery is language used by poets, novelists and other writers to create images in the mind of the reader. Imagery includes figurative and metaphorical language to improve the reader's experience through their 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.