There is a wide variety of skirts; some are long, some mini, some are tight and some flare out. The beautiful movement of a skirt's hem is one of it's most charming features.
You want to draw the skirt's silhouette, the way it appears to bend and wave, as realistically as possible! Here are a few drawing templates to help get you started. Will your skirt be a box type, or something else?
Please review each skirt carefully and choose the one that suits you best.