The first step in any endeavor such as this one would be to ensure that you have conducted a sufficient amount of research on the topic in question.  In this case, collecting research, evidence, and analysis from a variety of sources on Espada would be of vital importance.  The next step would be to hone in on what it is you want to demonstrate through evidence.  Exactly what are you going to address through your findings?  Implicit in this process would be the carving out of a thesis statement, a one or two sentenced explanation of the essence of the paper.  This might have to be done with the consultation of the task or even the instructor's input. Once these steps have been successfully accomplished, then I believe that you will be able to have a good start on this task.