This video uses oil paint to demonstrate this topic, but it works for watercolor, as well.
Opacity & Transparency
Artists from Daniel Smith
I get emails from DS that highlight watercolor artists. Be forewarned, some are out and out product placement, but still have good info. Here are a few:
Georgia Mansur
"I would like to give you some tips that will prevent you from making some classic Rookie Mistakes and set you up for fast tracking your plein air journey. I want to take the fear out of your outdoor painting adventures and get you comfortable, so you can paint like a pro!"
Plein Air Like a Pro: Watercolor Toolbox Tips
Julie Karlsson
"I discovered a great new way to recycle: I covered over some of my old un-wonderful watercolors with a coat of Mars Black Watercolor Ground. You could do this to recycle both failed and old watercolor paintings."
Recycle a Watercolor Painting, Go Black!
Laurin McCracken
A realist watercolorist whose work is largely influenced by the Dutch and Flemish still life painters of the 16th and 17th centuries.
Laurin McCracken Gallery
Carrie Waller
A watercolor artist working in a realistic, detailed style. With a background in Interior Design and her studies in Graphic design as well as her time spent living in Europe and Asia have influenced her as an artist. Her unique works are bold, vibrant and dramatic.
Carrie Waller Watercolor
Jean Haines
I think there is a myth that every professional artist only paints a masterpiece every single time they pick up their brushes. And many do. But there are also many artists who enjoy experimenting with technique, or who are not completely satisfied with their results so they bin a painting to start a new one.
Galleries