Will Todd's anthem "The Call of Wisdom", commissioned specially for this event, was performed by the Diamond Choir, made up of about 40 children from around the UK. The Archbishop of Canterbury dedicated his sermon to the Queen, during which he noted her "lifelong dedication" and stated that she "has made her 'public' happy and all the signs are that she is herself happy, fulfilled and at home in these encounters." Afterwards, a formal lunch was held in Westminster Hall. The Queen returned to Buckingham Palace at 2:20 pm, in an open top carriage procession and escorted by The Household Cavalry Regiment. Another reception was held at London's Guildhall and a luncheon took place at Lancaster House, hosted by the British Secretary of State for Foreign and Commonwealth Affairs. A reception solely for governors-general was held by the Queen at Buckingham Palace. The weekend of celebrations ended with a balcony appearance at Buckingham Palace. The Queen appeared on the balcony with the Prince of Wales, the Duchess of Cornwall, the Duke of Cambridge, the Duchess of Cambridge, and Prince Harry in front of cheering crowds outside the palace and along The Mall. There followed a feu de joie and a flypast by the Red Arrows and historic aircraft, including the last flying Lancaster bomber in Britain. Several media commentators commented on the significance of only senior members of the royal family appearing on the balcony. BBC royal correspondent Peter Hunt remarked that it "sent a message demonstrating both continuity and restraint at a time of austerity". To mark the jubilee, the Queen bestowed Royal Borough status on Greenwich, in southeast London. In addition, a competition was held to grant in 2012 city status to towns and either a lord mayoralty or lord provostship to one city. City status was awarded to Chelmsford in England, Perth in Scotland and St Asaph in Wales. Armagh, Northern Ireland, was awarded the Lord Mayoralty. The Olympic park in East London, created for the 2012 London Olympics, was named the Queen Elizabeth Olympic Park following the Olympics. The Queen Elizabeth II Fields Challenge (Queen Elizabeth Fields Challenge in Scotland) was a project of the charity Fields in Trust to safeguard parks and green spaces as public recreation land in perpetuity for future generations to enjoy, and to provide a permanent legacy of the Diamond Jubilee and the Olympics. The Woodland Trust planned to establish 60 Jubilee woodlands during 2011 and 2012, one of almost 500 acres – Flagship Diamond Wood, Leicestershire – and the remainder 60 acres each. A stained glass window, paid for by MPs and members of the House of Lords, was unveiled in the Queen's presence at Westminster Hall in March 2012.