The faces all look quite derpy, it seems the artist isn't really used to drawing ''wide-face'' from such angles.
The bodies look realistic, the torso's look quite long, albeit in terms of shading and attention Mami received quite a bit more. I can't help but dislike how Nagisa is drawn. It seems quite a unimaginative at unflattering posture in my opinion. Kyouko's head seems to be smaller in comparison to her body than the other girls.