The eyes look plainly terrible to me to the point that the face doesn't even have even a passing resemblance. I can imagine my impression might change after seeing the whole figure, with the body and everything else pointing to it being 'Rambo,' but at the moment I look at the head and I just see some random guy, not just a failed likeness but someone else entirely.
I really cannot understand how people can look at the head picture we've seen so far and say it looks like Rambo, that just baffles me. I think such people would be just as impressed if you showed them a mossy rock with googly eyes and a black rubber band on top, just crazy people I say.