The Raft of the Medusa portrays the moment when, after 13 days adrift on the raft, the remaining 15 survivors view a ship approaching from a distance. According to an early British reviewer, the work is set at a moment when "the ruin of the raft may be said to be complete".[18] The painting is on a monumental scale of 491 × 716 cm (193.3 × 282.3 in), so that most of the figures rendered are life-sized[19] and those in the foreground almost twice life-size, pushed close to the picture plane and crowding onto the viewer, who is drawn into the physical action as a participant.[20]
Detail from the lower left corner of the canvas showing two dying figures
The makeshift raft is shown as barely seaworthy as it rides the deep waves, while the men are rendered as broken and in utter despair. One old man holds the corpse of his son at his knees; another tears his hair out in frustration and defeat. A number of bodies litter the foreground, waiting to be swept away by the surrounding waves. The men in the middle have just viewed a rescue ship; one points it out to another, and an African crew member, Jean Charles,[21] stands on an empty barrel and frantically waves his handkerchief to draw the ship's attention.[22]
The pictorial composition of the painting is constructed upon two pyramidal structures. The perimeter of the large mast on the left of the canvas forms the first. The horizontal grouping of dead and dying figures in the foreground forms the base from which the survivors emerge, surging upward towards the emotional peak, where the central figure waves desperately at a rescue ship.
Diagram showing the outline of the two pyramidal structures that form the basis of the work. The position of the Argus is indicated by the yellow dot.
The viewer's attention is first drawn to the centre of the canvas, then follows the directional flow of the survivors' bodies, viewed from behind and straining to the right.[19] According to the art historian Justin Wintle, "a single horizontal diagonal rhythm [leads] us from the dead at the bottom left, to the living at the apex."[23] Two other diagonal lines are used to heighten the dramatic tension. One follows the mast and its rigging and leads the viewer's eye towards an approaching wave that threatens to engulf the raft, while the second, composed of reaching figures, leads to the distant silhouette of the Argus, the ship that eventually rescued the survivors.[2]
Géricault's palette is composed of pallid flesh tones, and the murky colours of the survivors' clothes, the sea and the clouds.[24] Overall the painting is dark and relies largely on the use of sombre, mostly brown pigments, a palette that Géricault believed was effective in suggesting tragedy and pain.[25] The work's lighting has been described as "Caravaggesque",[26] after the Italian artist closely associated with tenebrism—the use of violent contrast between light and dark. Even Géricault's treatment of the sea is muted, being rendered in dark greens rather than the deep blues that could have afforded contrast with the tones of the raft and its figures.[27] From the distant area of the rescue ship, a bright light shines, providing illumination to an otherwise dull brown scene.[27]