Studying Fabric

I have always been told by most of my teachers that I tend to make my drawings too stylized. I always just figured it's because I like to turn everything into a cartoon, but as time went on, I learned that it was because I really just didn't fully understand how to draw and shade fabric to make it look realistic. One assignment was to draw fabric from a photograph, which shows challenging because you can't walk around it. You can't look at the light and see how it is really hitting the model and the fabric. But, practice never hurt anybody!