These photos are from the bonfire and fireworks display in Rosemarkie celebrating Guy Fawkes Night (Bonfire Night), November 5.
Guy Fawkes didn't like Protestants, so he devised a plot to blow up the House of Parliament, and, with it, Protestant rule under King James I of England.
I'm not sure if this night is meant to celebrate the plot (unlikely) or to celebrate Guy Fawkes' subsequent capture and hanging. All I know is that when we tried to leave early to avoid the rush of departing traffic, an angry mob of Scottish people cried, "Halt, ye unbelievers!" and chased us with torches and clubs all the way back to our car.