(man how could i lose my creativity so much i forgot about THIS technique of 'painting on' trees?:'D) Artist Gay Kraeger's tips for making trees with a "tree machine" (Sponge) from Strathmore's 2014 Online Workshops. See this free video lesson and more:
Lesson: with a few simple strokes learn how to easily create rough water. It all has to do with the amount of water on your brush. Clip from Waves, Water & Clouds DVD available at www.birgitoconnor.com
Watercolor is a versatile and flexible medium that can yield a variety of results. Also known as aquarelle, it's a painting technique in which the paints are made of pigments suspended in a water-soluble vehicle.