All of this is easily explained by the picture being of a reflection on the back of the phone.
It is going to be distorted.
At this point, whether it is a live picture or photo of a stock picture, is unknowable.
It's literally worthless as a any sort of proof of identity, as it could be easily reproduced by anyone.
I would argue maybe Q wants us to have this argument so we understand how ithis method could be used to leak heavy shit without breaking any rules.
Imagine watching a video of Hillary and a child in the reflection of a tea kettle.