YouTube - Imaginative Landscape in watercolour with wax paper, part 2
Imaginative Landscape in Watercolour, part 2 - use wax paper to create textures
Skip to 1.44 for spraying with water and watch the paint flow under the wax paper.
Skip to 7.31 for a summary of the colours used and the importance of keeping your board on an angle.
Recorded in-class with Marion Chapman and I so wish I had a pic of the finished painting but sadly I don't so I will remake this video now that I know so much more about creating YouTube videos.