Stowaway discovered on Kimberley cruise

Ships Log, Oceanic Discoverer 0600 hours.  I was taking an early stroll on the promenade deck this morning.  To my great surprise, I discovered the ship had gained another passenger during the night, lounging on the deck railing. 
To my inexperienced eye, it looked like some form of tropical mantis.  All the more remarkable as we were about ten miles off the Kimberley coast. A long way for a mere arthropod to fly. No wonder he felt like a rest !
Later when I reviewed my photo of the hitch-hiking insect, it didn't appear to have the large eyes of a praying mantis. The ordinary garden mantis as you may know, has quite bulbous eyes, which go red at night, and pink during the day.
If you look closely at the second photo, you'll see Arthur ( for want of a better name) has two ET style eyes, very small.  Other suggestions as to what species he could be, include a goliath stick insect ( eurycnema goloioth) or even a Giant Phasmid ( diapherodes gigantea). If the latter is correct, Arthur is probably aptly named, as the male phasmid is a bit smaller than the female.
What do you think Arthur is ?  Could he be a new species perhaps ?  Would be interested to know, and any feedback appreciated.