The Royal Academy's annual Summer Exhibition has been unveiled to the press. It includes Winding River by US artist William Steiger.
David Hockney's largest ever work, Bigger Trees Near Warter, takes up an entire wall of the exhibition space.
The theme of this year's exhibition is Light. Jane and Louise Wilson's photograph printed on aluminium, Safe Light, Corridor, is among the exhibits.
Some 1,200 works are picked from the 13,000 submitted by established and unknown artists. Among them is William Alsop's Fog Is An Urban Experience.
The second gallery features a memorial to British abstract artist Sandra Blow, who died last year aged 80.
Although Blow was known for her brightly-coloured paintings and collages, the Royal Academy is displaying some of the more sombre pieces from her catalogue.
Michael Sandle's controversial Iraq Triptych has won the exhibition's Hugh Casson prize for drawing. The three-panel work is a protest at Tony Blair's handling of the Iraq war.
The Summer Exhibition traditionally devotes a section to architecture. Frank Gehry's design for the IAC Corporation's building in New York is among those singled out.
New York artist Tara Donovan, who uses everyday materials to make organic sculptures, also features. This untitled work was created using rubber bands.
The 239th Summer Exhibition opens its doors on Piccadilly, central London, from 11 June to 19 August, allowing people to see works like April Gornik's Suspended Sky.