What is Rainer Maria Rilke know for? His poetry, does it have a certain element to it that identifies him as a distinguished poet like one would see a Picasso and recognize the artist?
Why not pick a poet about whom you know something? Rilke is difficult, particularly in translation. (Do you read German?) There are scores of admirable and complex poets who write or wrote in English. I would say that avoiding the temptation to plagiarize is a very good idea.