Cartoonist Stan Drake had a gift for drawing from photographs. He easily turned photos into elegant line.

But a photograph couldn’t show him how to draw those invisible motion lines. Look how awkwardly Drake expressed movement in this next picture.
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| Drake’s motion lines are contradicted by the hair hanging flat and other body language |
Similarly, look how badly Al Hirschfeld– a talented artist in other respects– draws the path of this punch:

Contrast Hirschfeld’s motion line with the line of Leonard Starr, who understood the arc of an arm:

Motion lines expose many an artist who doesn’t know anatomy. A photograph can’t help you map invisible lines.
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| Notice how there’s no weight behind this punch. |
Photo reference is a great tool for artists who have already paid their dues but if you haven’t, it leaves you exposed when it comes to the invisible parts of drawing.

