Witches' Sabbath (The Great He-Goat) powdered glass, orpiment and iron oxides. He likely worked with mixed materials. Technical analysis indicates that most of the Black Paintings begun with preparatory drawings. "Witches' Sabbath" is the exception; the final composition seems to have been painted directly onto the wall. Art historian Fred Licht notes that Goya's brushwork appears "clumsy, ponderous, and rough" and lacking finish compared to his earlier work. Licht believes this was a deliberate ploy to physically convey dismay at human inadequacy and his own feelings of personal doubt. Unique in the series, "Witches' Sabbath" was not significantly altered by Goya after his initial work.
Witches' Sabbath accusation means Italian popular culture was less inclined to believe in the existence of Black Sabbath. The Inquisition itself also held a skeptical view toward the legitimacy of Sabbath Assemblies. Many of the diabolical elements of the Witches' Sabbath stereotype, such as the eating of babies, poisoning of wells, desecration of hosts or kissing of the devil's anus, were also made about heretical Christian sects, lepers, Muslims, and Jews. The term is the same as the normal English word "Sabbath" (itself a transliteration of Hebrew "Shabbat", the seventh day, on which the Creator rested after creation of the world), referring