What does this image mean?

Beneath a boiling sky, aflame with yellow, orange and red, an androgynous figure stands upon a bridge. Wearing a sinuous blue coat, which appears to flow, surreally, into a torrent of aqua, indigo and ultramarine behind him, he holds up two elongated hands on either side of his hairless, skull-like head.

His eyes wide with shock, he unleashes a bloodcurdling shriek. Despite distant vestiges of normality - two figures upon the bridge, a boat on the fjord - everything is suffused with a sense of primal, overwhelming horror.

This, of course, is The Scream, by the Norwegian artist Edvard Munch - the second most famous image in art history, after Leonardo's Mona Lisa.

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