A Taller Frame Than Usual
40x60mm, not 35x45mm.
A Bahraini passport photo is 40 x 60mm — 4 x 6cm. That is both wider and considerably taller than the 35x45mm frame used across Europe and much of Asia, and it is the same format Egypt, the UAE and several other countries in the region use.
The head sits at 38mm measured from the top of your hair to the bottom of your chin, with 6mm of clearance between the top of your hair and the top edge of the photo. That puts your chin line around 44mm down the frame, leaving the lower portion for your neck and shoulders.
Because the frame is taller, a 35x45mm photo cannot simply be reprinted at this size. The proportions differ, so the head would end up the wrong size relative to the frame even though the picture itself is fine.