Butterflies: How Two 19th-Century Teenage Sisters’ Forgotten Paintings Sparked a Triumph of Modern Conservation | Brain Pickings

... these drawings are equal to any I have ever seen by modern artists ... every tuft of hair in the caterpillar, the silken webs of the cocoon, or the delicate and often intricate pencillings on the wings of a moth, stand out with a prominence of relief which it is perfectly impossible to reproduce by simple water colours...