After working on the exercises I mentioned in my previous post, here are some images that might help you make the transition between my sketches and photos from fashion magazines. If you want to make this transition smoother, all you have to do is have a model and ask them to stay in different positions.
Take some photos, make them black and white and try to figure out the main axes of their body. Observe the tension of every line and simply memorize some positions in order to use them later, when drawing fashion sketches. For the moment, you can study from my photos.