Been trying out this software, its an awesome way to create a more abstract or artistic digital image. There are many options to add shapes, styles, and effects as you draw. The mirror brush also allows you to more easily complete projects that require symmetry, such as portraits or flowers. Here are a couple of rough examples I quickly created. Also, there is no undo function, which allows you to continually move forward in the piece rather than continually editing, as well as making each stroke a carefully considered addition.