Beautiful painting by Sir Lawrence Alma-Tadema

The Roses of Heliogabalus is a famous painting of 1888 by the Anglo-Dutch academician Sir Lawrence Alma-Tadema, at present in private hands, and based on a probably invented episode in the life of the Roman emperor Elagabalus, also known as Heliogabalus, (204–222), taken from the Augustan History. Elagabalus is portrayed attempting to smother his unsuspecting guests in rose-petals released from false ceiling panels.[1]
In his notes to the Augustan History, Thayer notes that "Nero did this also (Suetonius, Nero, xxxi), and a similar ceiling in the house of Trimalchio is described in Petronius, Sat., lx." (Satyricon)
The canvas measures 214 cm by 132 cm, dimensions which are approximately in the golden ratio, 1.618:1