Trio of covers from the United Kingdom

This trio of covers from the United Kingdom came to me through the September Cover Exchange on StampBoards.

This first one is from the London 2012 Olympic Games with the Bradley Wiggins gold medal stamp. 

This second cover commemorates the London 2012 Paralympic Games and utilises the entire mini-sheet.

This third cover uses the commemorative mini-sheet to celebrate Her Majesty Queen Elizabeth II Diamond Jubilee.

Thanks to my exchange partner for sending these covers across.