Do you often draw sitting down? It is really important that your paper and your eyesight are at right angles. Otherwise, your drawing will be foreshortened.
Therefore, sitting becomes dangerous when your paper or canvas is NOT perpendicular to your eyesight. Watch the video below to hear when I made this mistake and had to redo an entire watercolour painting!
For more information on the Zen and the Art of Art book, our online art classes, or more free art tips, visit dojo.zenartart.com.