Assorted sketches and preliminary drawings.

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Based on a photo of Larry from the Three Stooges.

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Based on a photo of Moe from the Three Stooges.

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From the Mutter Museum of medical curiosities in Philadelphia.

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From the Mutter Museum.

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From the Mutter Museum.

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From a magazine photo while teaching a drawing class.

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Gothic sculpture from the Philadelphia Museum of Art.

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Preliminary drawing from "Womb."

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Preliminary drawing from "Stolen."

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Preliminary drawing from "Return to the Forest."