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Two beautiful oil sketches by Rubens. The first (above) looks strikingly contemporary. You could almost believe it was done with PH Martin's dyes.
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The second (above) is a terrific example of how a forceful, dynamic composition can still contain amazingly subtle and graceful detail. And what are those red/oranges? Is that vermilion or did he figure out a way to make ordinary burnt orange and red look luminous?