Frog of the ball: at the Sydney Royal Easter Show, what makes a prize-winning amphibian?

On Monday, a fierce frog competition came to a head at the Sydney Royal Easter Show as judges deliberated and announced the best frog in NSW. Entrants from around the state came to Sydney to take home the highly sought-after blue ribbon. The competition boasts contestants of all ages and different frog species. But just what do the expert judges look for to be crowned best frog? Is it the tallest leap, loudest croak or shiniest coat? Guardian Australia investigates.