Final answer:
The shared concept in 'The Myth of the Wawilak Sisters' is 'Dreaming,' a central part of Aboriginal spirituality and a theme commonly depicted in Aboriginal art, as seen in the works of important artists like Dorothy Napangardi and Gloria Petyarre, who use traditional symbolism to express cultural narratives and connections to the land.
Step-by-step explanation:
The shared Native Australian concept represented in the bark painting 'The Myth of the Wawilak Sisters' is the concept of 'Dreaming.' This term refers to a complex Aboriginal spiritual belief system that encompasses the creation period when supernatural beings formed the world. The Dreaming tells the story of ancestral spirit beings who created the landforms and set the laws of social and moral order.
Aboriginal artists, through their artwork, capture aspects of the Dreaming and their cultural heritage. Notable Aboriginal artists such as Dorothy Napangardi and Gloria Petyarre have portrayed ancestral stories and connections to the land in their paintings. Dororthy Napangardi, in her works like 'Salt on Mina Mina,' depicts the ancestral tracks and stories related to her traditional lands. Gloria Petyarre, in her painting 'Leaves,' references women's ceremonies and body markings through a feathery style that implies movement. Even today, Aboriginal art is a living tradition with artists like Kaylene Whiskey blending modern influences with Indigenous culture in paintings like 'Rikina Kungka Kutju.'