The top of the head, including the hair, to the bottom of the chin must be between 50% and 60% of the image's total height.
The eye height (measured from the bottom of the image to the level of the eyes) should be between 50% and 60% of the image's height.
The layout and position of the photo must be proper (Too close and too far are not recommended).
Unrecommended photo:
Blurry photo.
Others than face photo.
Expression face photo.
Terms and Conditions of Upload Photo Passport
Make sure the photo are sharp, in focus, and not ghosted.
Make sure the photo is not covered, cropped or folded and not blurry.
Make sure the passport photo is in landscape form.