What sets poetry apart from prose -- and makes it more interesting usually -- are the rhythm, rhyme, choice of words (diction), any of the other literary devices that poets use in their work.
If you are drawn to a particular poem because of its rhyme, then that's what you should write about. Or maybe it's the rhyme and alliteration ... or any number of other elements.
Here are places where you can learn what literary devices are, in case you need these:
Let us know what you decide.