Hi! We encourage applicants to submit the work they believe is the strongest representation of their writing. If you feel that a sample of real people fiction—so long as your portfolio follows the guidelines listed in our info doc—best represents you, then you may include it in your application. However, we want you to be aware that we can't properly judge characterization from this type of sample which may weaken your app, so please keep that in mind when applications roll around. Thanks for your interest!