Weekend readers' pictures: Blue

John Chapman: “A railway carriage on the north Norfolk railway between ­Sheringham and Holt” Photograph: John Chapman

David Ames: “One of the more ­interesting examples of new architecture in Southampton” Photograph: David Ames

Catherine Allen: “Taken on the island of Antigua, where even the walls and phone booths are co-­ordinated and bright” Photograph: Catherine Allen

Jonathan Fletcher: “Occasionally we catch a lobster with one of three pigments in its shell colour missing: this is the result” Photograph: Jonathan Fletcher

Jonathan Beck: "On a recent walking trip to the Anti Atlas in Morocco I came across the repainting of the 'Blue Rocks', originally painted by Belgian artist Jean Verame in 1984" Photograph: Jonathan Beck

V Hinton: "Big box retail at its bluest" Photograph: V Hinton

Shaun Soper: "My son Tom and his cousin Simon persuaded me to by them some blue mushy drink. Then they showed me why they liked it so much"
Photograph: Shaun Soper

Howard Harrison: "The clear blue sky reminded me of the vastness of the universe against the minuteness of mankind" Photograph: Howard Harrison

Richard Thomson: "Cold blue steel ballet costumes from a performance outside St Paul's Cathedral, London"
Photograph: Richard Thomson

Claire Morrison: "I was waiting in a car park in Houston, Texas, for my Dad who was in a shop buying some shorts. The suffocating heat made the blues appear even bluer"
Photograph: Claire Morrison