https://creativemarket.com/DaniMadBrushes/1530274-The-Gouache-Collection-Brushes

Gouache it's a medium with an history of more than 600 years. Used by many artist from Renaissance to background and concept artist in movies industries around the world. The Gouache Collection is a complet set that recover the workflow, and look of this medium. It's made for traditional artist to retouching or finishing real gouache works in a digital process. As well work great for full digital projects from scratch to displays. More than 80 brushes made to work as one in perfect combinations of them.