The photo itself could cause immediate disqualification - mainly through matching the photo used on other entries (i.e. multiple entries) - we know that they have massively increased their facial recognition capabilities in recent years. Other than that people always stress because the face is supposed to be 69% of the vertical or something like that and they measured theirs and it is 71.6% so they are assuming they are disqualified. Such a minor difference would not cause DQ in my opinion. Also people reuse old photos and at some point they could implement facial recognition to disqualify those cases, but so far have not done that before results announcement that we know of.