Saran/plastic wrap is a quick and easy way to create a marbled look on watercolor for an interesting background with texture. Begin with a watercolor wash of your desired color-make sure it is very wet. Cover with plastic wrap (the more wrinkles the better) and allow to dry. Remove wrap. Voila! Texture. Once the first color is completely dry, add a second color as desired.
|Wet watercolor wash|
|Plastic wrap on wet wash|
|Allow to dry then lift plastic wrap|
|Add a second color with a second Saran wrap smush as desired once first color has completely dried.|