Platinum Jubilee: Queen thanks country as Jubilee celebrations begin

The special portrait photos show the Queen looking happy, sitting on a cushioned window seat at Windsor Castle, which has been her main home for the last couple of years.

The historic castle’s famous Round Tower can be seen in the distance.

Mr Mackechnie took two previous portraits of the Queen alongside the Prince of Wales, the Duke of Cambridge and Prince George to mark her 90th birthday in 2016.

In her Jubilee message the monarch said: “I continue to be inspired by the goodwill shown to me, and hope that the coming days will provide an opportunity to reflect on all that has been achieved during the last 70 years, as we look to the future with confidence and enthusiasm.”