Australian Geographic nature photographer of the year 2023 – in pictures

In the 20th year of the South Australian Museum's photographic competition, Samuel Markham's image My Country Burns was the overall winner. The picture, taken while Markham was defending his home from a bushfire, was described by the judges as a breathtaking, scary photograph ... indicative of the world we now live in'

• Australian Geographic nature photographer of the year 2023 exhibition is showing at the South Australian Museum until 29 October