Buckingham Palace was transformed on Sunday night as a rainforest design was projected on to the building.
The image was displayed as part of a global conservation initiative in the Queen’s name.
Her Commonwealth Canopy project (QCC) seeks to preserve precious areas of forest for future generations.
The artwork features the QCC logo embedded with a pattern of identifiable foliage and tree silhouettes, designed to take the viewer into a forest canopy space.
The QCC will also be the subject of The Queen’s Green Planet, a documentary featuring The Queen with Sir David Attenborough, which will be broadcast on ITV at 9pm on Monday.
The projection comes at the start of a week that will see representatives of 53 countries gather in London for the Commonwealth Heads of Government Meeting (Chogm), during which they will discuss environmental themes among other things.
During the course of her reign, the Queen has planted more than 1,500 trees all over the world.
South Africa has announced a new QCC commitment where the Knysna and Tsitsikamma forest complex is to be protected and preserved.
The area holds a special poignancy for the Queen as it is where, as Princess Elizabeth, she celebrated her 21st birthday and dedicated her life to serving the Commonwealth.