Daniel chats with artist brothers Abdul-Rahman and Abdul Abdullah, who are close in life but not so much in their art. However, thorny issues unite them in Land Abounds, their new joint exhibition. Hear how Filipino sculptor Leeroy New builds his large-scale sci-fi installations made from 100% recycled materials. He's in Australia for Melbourne's RISING festival. And how did an 1897 painting by the Wurundjeri clan leader William Barak, end up at a Sotheby's auction house in New York? Last week Wurundjeri people successfully bid for the works.