When the Alien 'defies human articulation', in my description, it's like... you know,
HellBoy? When HellBoy and the second Sammael duke it out in the subway, HellBoy detaches a wall-phone and begins smashing it against the Monster, until it, when it has its back turned on the hero,
turns the arm on its back and grabs HellBoy's arm. The moment in my fight should play out like that, kind of with the intention to show it's a f**king Alien and it's got unknown abilities you are never aware of; the tail 'fin' in my fight works as an effective blade, and it slashes through the Predator (the right-to-final blow). Also when the Alien violently takes off the mask of the Predator, it's not with the tongue but with the hand, like a grand bitchslap.
So they aren't completely the same.