Quote - the first pics are just examples. they were not meant to look real.

M4 with glasses on. the one where hes eyes are dark is more real ?

No I agree with you, the dark one looks pretty bad and the no shadows one looks better, but this is only because in that particular scene the lighting supports it. In a scene with more defined shadows, the no shadow one would look like the guy's eyes were glowing. Basically we need this stuff to work like expected and the fakes we use only give bad results.