The final product was a complete image of the cartoon and one complete frame. Layers work very much like this. Each layer of a picture is kind of like the plastic cells in old cartoon studios. Using layers, a single image or graphic can be broken down into component pieces, only to be reassembled at print time. A graphic image used as a fill, pen, or text color.
Textures are a sub-set of the patterns ink set.
Gobe Productive includes a few examples. You can add your own textures at any time. To change how a curve progresses through a vertex. Reorientation allows you to rotate the flow of curves around vertices using vertex control handles. This provides a powerful way to design complex, curved shapes.