Final answer:
Imagery and Metaphor are not typically associated with poetic structure; they contribute to meaning rather than structure.
Step-by-step explanation:
The aspect typically NOT associated with poetic structure is d) Imagery and Metaphor. Poetic structure is often characterized by aspects like meter and rhyme, stanza length, and punctuation usage. These elements contribute to the overall musicality, organization, and visual presentation of a poem. However, imagery and metaphor are components of word choice and figurative language that contribute to meaning and thematic development rather than to the structural foundation of a poem. While they play a critical role in creating vivid pictures and conveying complex ideas, they don't define the poem's structure in the same way that meter, stanza length, or punctuation do.