The poem is written in free verse, and it uses a variety of literary devices, including imagery, symbolism, and personification. The imagery in the poem is vivid and descriptive, and it helps to create a sense of atmosphere. The symbolism in the poem is rich and complex, and it can be interpreted in a variety of ways. The personification in the poem is effective in giving the garden a sense of life and personality.
"On the Garden Wall" is a well-crafted and thought-provoking poem that explores the themes of temptation, danger, and punishment. The poem is also a commentary on the human condition, and it suggests that even the most beautiful things can be dangerous.