In the poem Harlem by Langston Hughes can there be more than one figure of speech?

The poem is a series of similes that appeal to different senses (taste, touch, smell, visual, sound). Hughes expertly manipulates the reader via these metaphors. He posits a question in the first line and then offers six tentative answers in the form of five similes and one metaphor (the last line). However, because of the repetition, the reader could turn that metaphor into a simile on their own (Or does it explode . . . like a bomb?).

Each of these questions refers to, of course, racial equality. The first line of the poem is an allusion to Martin Luther King's "I Have a Dream" speech. Together these questions, phrases as similes, gives up a greater idea of the depth and seriousness of the problem of racial equality.