Schlera (white part of eyes):
Airplane Saif has lots of schlera showing above and below his iris.
Real Saif has minimal schlera showing above and below his iris cheeks.
Airplane Saif has different cheek labial lines (saggy)
Note the difference in demeanor:
Airplane Saif with bowed-subserviant shoulders.
Recall real Saif in car with Gadaffi supporters, leaning out of vehicle with demeanor of taunting the world.
Airplane Saif and prison Saif exude submissive demeanors.
Airplane Saif has different nose.
Airplane Saif 'wide' space between eyebrows.
'Saif' before capture
'Saif', after his capture.