Here is another set of brushes. These are impasto brushes; I am still not very good with them, but I do find them fun to use. I was trying to paint thick paint on the canvas and then try to scrape it with something like a palette knife. It can be done with these brushes, but I find it is difficult to control. Here are some examples of the brush-strokes.
With Painter 12.1 we can load a library with brushes included or a category into the library of our choice.