I got 6.9 (7.0 without glasses) -- definitely not more attractive than any of those guys. Even my mother would say Henry Cavill is considerably more attractive than me without batting an eyelid.
I would imagine there is some sort of penalty given the face is on a 2D surface.
Since your screen is most likely flat, you'd have to hold the camera directed straight at it and at a bit of a distance in order for their face not to get distorted by perspective. Even a slight angle would make it appear to the algorithm that they have too big of a forehead/chin, or an asymmetric face (otherwise known as a 5/10).
I would imagine there is some sort of penalty given the face is on a 2D surface.