Draw gothic clothes on any character of you're choosing. It can be an OC or someone from any manga or anime. LETS MAKE IT ONE PERSON, and ADD A BACKGROUND that suits the character. (For ex: Naruto is dressed up in whatever gothic fashion you want, but you add something like a scroll in the background. Something that represents him.) You have a lot of freedom, use any medium you want. Draw gothic style by what it means to you.
Remeber that everyone is a winner, just because you might not win a trophy, doesn't mean you're art was bad. Everyone's art is good.