DIGITAL PAINTBRUSH RESOURCES
https://www.deviantart.com/morraey/art/Map-Brushes-449750567
https://www.deviantart.com/captscott/art/Fantasy-Brush-Pack-01-191047320
https://www.deviantart.com/charfade/art/The-Ultimate-Grass-Brush-Set-108728221
https://www.deviantart.com/larrydnjr/art/larrydnjr-Tree-Brush-Set-24927418
https://www.brusheezy.com/brushes/1312-complete-tree-brush-pack
https://www.cartographersguild.com/forumdisplay.php?f=49