A new official photograph of the Queen has been released to mark her 70th year as monarch. It shows the Queen looking contented, sitting on a cushioned window seat at the castle which has been her main home for the last couple of years. The famous Round Tower is visible through the window. 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. #Royal #PlatinumJubilee #Queen.