Archibald, Wynne and Sulmann Prizes Audiences have the chance to view artworks by this year’s finalists in each of Australia’s three most prestigious art awards — the Archibald, Wynne and Sulman prizes. Finalists in the Young Archie competition — which rewards budding artists aged 5-18 years — will also be on display. Art Gallery of NSW, Art Gallery Road, Sydney. Opens today. Tickets: $8-$18. Bookings: 136 246 or online. Until October 22. Sea Garden The whimsical series of oil paintings by Judith Van Heeren in Sea Garden depict a conflicted nexus between the natural world’s captivating magic and fragility, with particular reference to the Great Barrier Reef. Velvety landscapes are populated with sea gardens brimming with jewel-like organisms, yet they give way to white, bleak horizons — a timely reminder of the Great Barrier Reef’s mortality, fuelled by coral bleaching and pollution.