Did an experiment and used watercolor ground as base for a gouache painting. More in comment. : r/hobonichi

Natural World Workshop' Gouache Painting Review – The Oaxacaborn Blog

Artful Experiments: Blending Watercolor and Gouache for Abstract

Watercolour Ground: An Introduction To Painting With A Primer

Magical Waterfall, me, Gouache : r/Watercolor

Artful Experiments: Blending Watercolor and Gouache for Abstract

Artful Experiments: Blending Watercolor and Gouache for Abstract

Artful Experiments: Blending Watercolor and Gouache for Abstract

Gouache experiment on toned paper

Experimenting with gouache and watercolor - Ursula Schichan

Gouache Painting – An Introduction – WIsdom Talkies

Expressive Marks with Gouache: Forest Studies - The Fearless Brush

What is Gouache? - Answering your GOUACHE FAQs - The Fearless Brush

Gouache in Hobonichi : r/hobonichi

How To Paint With Gouache - The Complete Guide