Your first two sentences should tell the reader the "what" and "why" of the essay.
Start each paragraph with a topic sentence telling the reader the main point you are discussing.
Use examples from the poems to make your points stronger.
It is not only the analysis of techniques used in a poem, but poetry analysis provides a broader and wider picture of the poem, its reality, its hidden meanings between the lines, a study of poet’s mind, feeling and intention behind a poem.
Different techniques used in poetry analysis are helpful tools in investigating and reviewing the poem.