In many depictions Michael is represented alone or with other angels such as Gabriel, and usually as an angelic warrior, fully armed with helmet, sword, and shield, which eventually bears the Latin inscription Quis ut Deus. Michael may be standing over a serpent, a dragon, or the defeated figure of Satan, whom he sometimes pierces with a lance. In other depictions Michael may be holding a pair of scales in which he weighs the souls of the departed and may hold the book of life (as in the Book of Revelation), to show that he takes part in the judgment.
"Saint Michael in Byzantine court dress", 12th-century mosaic by anonymous Byzantine artist, from "La Martorana", also known as Santa Maria dell'Ammiraglio in Palermo, Sicily (Italy).
"Michael the Archangel", a 13th-century Byzantine icon by an anonymous Byzantine painter, from the Monastery of St. Catherine, Sinai.
Source: By Anonymous Byzantine painter (395-1453 AD)Public domain image (http://all-photo.ru/icon/photos/10227-0.jpg) [Public domain], via Wikimedia Commons
"Saint Michael", detail from the Cambridge retable (framed altarpiece) by Simone Martini (1284 - 1344), an Italian painter born in Siena, and a major figure in the development of early Italian painting and International Gothic style.
Source:Simone Martini [Public domain or Public domain], via Wikimedia Commons
"Saint Michael", ca 1424-1425, by Fra' Angelico (born Guido di Pietro; c. 1395-1455), an Early Italian Renaissance painter.
Source: Fra Angelico (circa 1395–1455) [Public domain], via Wikimedia Commons
"The Archangel Michael" by Hans Memling (or Jan van Memmelynghe, 1430 - 1494) a German-born painter and draughtsman, who moved to Flanders and worked in the tradition of Early Netherlandish painting.
Source: Hans Memling (circa 1433–1494) [Public domain], via Wikimedia Commons
"Saint Michael weighing souls", detail from a 15th-century Last Judgement Polyptych by Rogier van der Weyden (c. 1400 - 1464), a Dutch painter, whose surviving works consist mainly of religious triptychs, altarpieces and commissioned single and diptych portraits.
Source: By de:Rogier van der Weyden († 18. Juni 1464), Anaid de Remerk (de:Benutzer:Anaid)Anaid at de.wikipedia [Public domain], from Wikimedia Commons
"Saint Micheal and the Dragon" with sword & buckler, wearing a brigandine with plate armour for hand and legs, by an unknown Spanish painter from the First quarter of 15th century.
Source: By Unknown Spanish (Valencian) Painter. (Metropolitan Museum NY) [Public domain], via Wikimedia Commons
"The Archangel Michael with the soul balance", 1468, by Bartolomeo Vivarini (c. 1432 – c. 1499), an Italian painter and younger brother of Venetian painter Antonio Vivarini (Antonio of Murano, ca. 1440-1480).
Source: Bartolomeo Vivarini [Public domain], via Wikimedia Commons
"Saint Michael killing the Dragon" by Josse Lieferinxe (c. 1493 - 1503/08), a French-born painter, formerly known by the pseudonym the Master of St. Sebastian.
Source: Josse Lieferinxe [Public domain], via Wikimedia Commons
"Archangel Michael", circa 1636, by Guido Reni (1575 - 1642), an Italian painter of high-Baroque style.
Source: Guido Reni [Public domain, Public domain, Public domain or Public domain], via Wikimedia Commons
"The Last Judgement with Saint Michael fighting with Satan", circa 1610, attributed to Hans Rottenhammer the Younger (1622 - 1668), a German painter.
Source: By Attributed to Hans Rottenhammer II. (1622-1668) (http://www.hampel-auctions.com/) [Public domain], via Wikimedia Commons
"Saint Michael weighing souls", detail from the altar of the Michaelbeuern abbey church (a Benedictine monastery in Dorfbeuern near Salzburg, Austria) by Johann Michael Rottmayr (1656 - 1730), an Austrian painter.
"Archangel Michael fighting rebel angels", c. 1720, by Sebastiano Ricci (1659 - 1734), an Italian painter of the late Baroque school of Venice.
Source: Sebastiano Ricci [Public domain], via Wikimedia Commons
Top image: “San Michele e il drago” – detail, circa 1505, by Raffaello Sanzio da Urbino (1483–1520), better known simply as Raphael, an Italian painter and architect of the High Renaissance.
Source: By see filename or category [Public domain], via Wikimedia Commons