Yeah, even accounting for the difference in pose, I'm not seeing more than a rudimentary similarities between the two.  And just to say, the PHM figure is scaled up by 2.5 and the Zygote figure is scaled down by 0.028.  The PHM figure is a different resolution.  I'd really have to start delving into the mesh to be certain that the PHM wasn't derived from the Zygote one, but it's definitely a different mesh.