The Wet Watercolor. Secrets in Watercolor with Laurie Humble: The Unifying Wash. How to use watercolours (or watercolors) Terry's Top Tips for Watercolour Artists with Terry Harrison. Painting Nature Scenes by Frank Francese : Watercolor Painting. How to Paint Orange Trees With Acrylic Part 4. Painting clouds and thunderheads with Jerry Yarnell (29 minute episode) Zenspirations Koi Watercolor Painting with Samantha Trattner.