Artangel: Mixed media crumpled tissue technique - tutorial - basically, glue tissue paper over a canvas, let dry. Paint, let dry, then rub pastel or chalk over the surface to highlight the texture. Would be an awesome way to vignette around a painting.
All about TEXTURE - 20 ideas Mixed Media Art Tutorial
How to add an isolation coat to your mixed media painting. Use this simple technique to protect your artwork! A must-do for all artists who want to preserve their artwork. Click through for the simple instructions.