One more little example of how to do TR designing a skirt.
Again I re-drew the basic pattern of the skirt (back and front) into two ways. First one is when you want to get the shape of 'pencil' and the second one - shape of a bell.
Here I tried to develop into the skirt of 'bell' shape. Having all darts taken in I created the design lines (in red mark).
Having the pieces cut out I tried to increase the development into the pieces A and C. As you see I gave more volume and got absolutely new patterns.