[left]: Henry Holiday: The Vanishing (detail from lower left side)
Illustration to Lewis Carroll's "The Hunting of the Snark" (1876)

[right]: John Martin: The Bard (retinex filtered and vectorized detail from lower left side)
commons.wikimedia.org/wiki/File:John_Martin_-_The_Bard_-_Google_Art_Project.jpg (ca. 1817)