I found him almost two week ago and his color is very different from other Predators.
That was one of the things I quite liked about the Emmisarys, that they had different skin colouration. We've seen it in a lot of the Predators anyway, so it would have been sweet to have seen that on screen again. We haven't really seen it since Predator 2.
Too bad the Emissaries got cut out of the movie. But then Black's whole premise would have to have been different : the Loonies would have been working with the Predators--as fellow hunter!