This picture of a boat in Malaysia by Sarah Schtakleff starts our readers' gallery focusing on the theme of yellow.
Sharon Jones: "It's all in the detail. A striking yellow amidst the white of this lily in Cajamarca, Peru."
Martin Douglas: "This is the dry suit hanging and drying area in the RNLI Station at Loch Ness, Scotland's newest and only inland RNLI station."
Helen Walmsley: "My daughter at the camera obscura exhibition in Edinburgh."
Rebecca Meloy sent this picture taken of an old truck in Bellingham, Washington.
Tim Martin: "A fallen leaf in Yellowstone National Park during the Autumn."
Lucy Guy: "Seen on the side of a steam engine. The rust provides interesting texture and colour."
Kenneth Marty: "The staircase inside a physician's office in Georgetown University Hospital, Washington DC."
Jenny O'Neill: "This is a shot of Hawaiian band Pepper playing at the Norwich UEA. It was in dreary December, but they convinced me it was summer for the length of their set!"
Gopi Krishna photographed these handles on a bus. Why not send us your photos. The next colour theme is purple, for details see the Your world link on the right.