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 and reflect only popular imagination of the times, influenced by ignorance, fear, and religious intolerance towards minority groups. Some of the existing accounts of the Sabbat were given when the person recounting them was being tortured. and so motivated to agree with suggestions put to them. Christopher F. Black claimed that the Roman Inquisition’s sparse employment of torture allowed accused witches to not feel pressured into mass accusation. This in turn means there were fewer alleged groups of witches in Italy and places under inquisitorial influence. Because the Sabbath is a gathering of collective witch groups, the lack of mass