And another one...

A completely different frog this time (though found in the same bucket of rain water). This one is much larger than the other two and has rather striking green spots and interesting 'cross' eye pattern. I'm rubbish at identifying frogs… it doesn't look like any of the ones that are supposed to live in this region!

Update!
I have managed to identify it as Peron's Tree Frog, Litoria peronii. I used this handy frog identifier: Museum Victoria Frogs