>>21673140I had a white humpback whale in mind anyway but it's good to see that it's that closely linked to australia. Added it to the image.
As for the inter-dimensional aspect, I'd see that as a really good way to connect it to the concept of Dreamtime and maybe even have this odd mix of sci-fi and legend
I added
>>21673126too, not because I'd want it to be a shark (if we were playing specifics, we can pass the orca off as technically a dolphin) but because its markings are so similar to aboriginal art. So we could have the patterns on its back perhaps be similar to those of the whale shark, but brightly coloured and contrasting its plain white body.