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ANSWER TO MYSTERY TECHNIQUE #6: Large amounts of water were applied to the paper, which caused it to form hills and valleys. Liquid paint was then dropped into the valleys and allowed to evaporate, creating striations.

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ANSWER TO MYSTERY TECHNIQUE #5: Wet paint was brushed on to wadded up plastic wrap and then stamped on dry paper and sprayed in places with water; more than one layer was applied.

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ANSWER TO MYSTERY TECHNIQUE #4: Rubbing alcohol was dropped into wet paint on top of a yellow underpainting.