Artist: Guercino
Artwork: Adoration of the Shepherds
Description: This is a chiaroscuro drawing, the medium is black and red chalk, heightened with white, on brown prepared paper. Guercino uses a variety of techniques to indicate light and dark, including hatching, cross-hatching, and stippling.
Url: https://anartworkaday.zhouqingen.com/reference/master/Museum/National Gallery of Art Sketch/R201001060031.avif