Working in oils has taught me a lot about blending gouache : r/Gouache
Art Lounge - #TILwithArtLounge Gouache is a water-based paint, similar to watercolor, but with a higher pigment load and greater opacity. In order to get the most out of your gouache paints
How to Blend Gouache Paint | Gouache, Gouache painting techniques, Gouache vs watercolor
Holbein Artists' Gouache Irodori Summer Set Review - Jackson's Art Blog