https://www.skillshare.com/classes/Watercolor-Challenges-And-Exercises-For-Improving-Your-Brushwork-Skills/1429462830

In this class you will learn how to develop good brushwork mechanics. Understanding where strokes originate and how to hold the brush can make all the difference in quality brushwork.

To help facilitate the different brushwork methods I've included four challenges that will put your skills to the test. Also you will find some common brushwork exercises that will give you more insight into creating better art.