Watercolor Brushes? Everything You Need to Know. (Beginner’s Series EP. #03) Posted on April 4, 2017 by Rosa Wortman This video, https://www.youtube.com/watch?v=38gaKuWivzU, can also be seen at https://www.youtube.com/playlist?list=PLCrC8hQc6kC0CbOid3iqU54KPNMbShHlE.