Aboriginal and Torres straight islanders have got strong legal protections on cultural / intellectual property. It is not kosher to do aboriginal art if you are not aboriginal unless you are given the nod. Only a few non indigenous artists have been given the go ahead to do this. It is fair enough, it is like doing knock offs. There is a strong spiritual element linked with the art. If you tried to pull a swifty and got found out, they would let Gina Rhinehart use you for a night.