The first three correct entries came from: J Falby, Salterton; D Jeffroy, Bristol; and O Peckham, Macclesfield
Detail 422 came from Watteau's Gilles or Pierrot (1718-19). This picture of the forlorn lover of the commedia dell'arte theatre, standing out by himself in front of the show, with his strikingly round hat-halo, has often been taken as a literal, or a surrogate, self-portrait - or at least as an emblem of the lonesome artist. It is also a portrait of stupidity (note the donkey) - soulful stupidity, a passive and appealing dopeyness. There's a very close contemporary version of this look in the figure of the young man in Lucian Freud's Large Interior, W11 (after Watteau). Our picture is in the Louvre, Paris.