I've been talking about this for too long. Perfectionism has prevented my from releasing these for almost 2 years now. I've been updating my custom brushes and combed through to pick out the best for certain tasks. I've consolidated the painterly brushes and put them up on ArtStation: https://artstn.co/m/220a
and Gumroad: https://gumroad.com/l/EE32
I've put together a brief video highlighting the two main considerations with the brushes.
I'd be happy to take any feedback and discussion around them on this thread. Also, I'd love to see how you put them to use!