I stop when the shadow on the paper feels heavier than the real one. That is the secret: a drawing is successful not when it looks like the thing, but when it weighs like the thing. When you could almost lift it off the page.
There is a specific hour, just before three o'clock, when the light in my room turns golden and shallow. That is when I draw. desene
I blow the graphite dust off the sheet, sign my name in the bottom right corner with a letter so small it is almost invisible, and close the sketchbook. The light fades. The room returns to being just a room. But the drawing—the drawing is a small, stubborn piece of time that refused to move. I stop when the shadow on the paper