Even though I don't work here, the fan art you have to draw says it has to be drawn (or done in paint program) without re-doing someone elses art it has to be 100% your and 100% neat. Why dont you try to get ideas from your favorite drawings and make that?
its always better to create your own stuff but i guess you can try to redraw, dont print since you could just copy but it is a good exercise to redraw something at a higher or lower percentage like at 50% or 150% (help keeping the proportions)