I have an active group of on-line students in the Getting Started class who are wrestling with wet-on-wet. Sometimes it seems to me the problem isn’t about technique, it is mental.
Gaining “control” by allowing things to happen.
Learning to appreciate what the paint does instead of trying to make an object.
It is all right to go through lots of good watercolor paper and lots of good pigment to learn what happens when the paper is wet or not, what happens when there is more or less water on your brush and what happens when there is more or less paint on your brush along with that amount of water on your brush and that amount of water on the paper.
You and the paper and paint become compatriots in telling your story.
I am going to share some of my students’ paintings in order for you to let go of coloring things and learn how to become a collegue of wet on wet.