1) Your head must face the camera directly with full face in view
2) You must have a neutral facial expression or a natural smile, with both eyes open
3) Taken in clothing normally worn on a daily basis.
4) Taken in the last 6 months.
5) Use a plain white or off-white background.
The following illustrations show a correct example and some unacceptable examples.
Taken over a grey background
Selfie taken under poor lighting conditions.