iDRAWGiRLS – Speed Painting Technique I – How to Paint Quick Concept Art in Under a Few Hours.In this TUTORIAL, you will discover how to paint quick color concept design within a few hours or less. Speedpainting is the most effective form of communication or expression amongst most concept artists nowadays. “Speed painting” is an method of painting or illustration, primarily a digital art form, in which one paints on a time budget, using already developed methods to create a piece. The pieces usually have an “unpolished” appearance, which stresses the importance of every stroke made on the canvas, digital or otherwise.