What I like is it conveys a lost time, another race long gone... Cimmerian!
He does not look like someone walking down the street today.
Arnold even accomplished that to an extent, he looked a bit strange to us back in 82.
Granted this is a exploration in prosthetics and makeup and I've no idea how well it would translate over to film. It is also an older Conan, he is worn, a younger version would be less so of course.
But there is no mistaking who it is. He just needs the piercing blue eyes. If it has erred into the far side of the spectrum of the characters interpretation then I would prefer they err that direction everytime then soften him for the masses. Might as well just have that terrible TV show come back from the nineties.