Your photo will be printed on your licence and ID badge.
The best way to make sure your photo is suitable is to get a professional passport photo.
All photos must be:
a good likeness
taken less than 6 months before you apply.
All photos must also:
have a plain, light background (not white or dark) with no background shadow
be a full front view of your face, head and shoulders, with your head filling most of the photograph
show your head without a head covering, hat, head band, bandana or scarf - except for religious or medical reasons. In all cases, facial features from the bottom of the chin to the top of the forehead and both edges of the face must be clearly shown.
Your photo must be:
45mm high × 35mm wide
on good quality paper.
Find examples of the sort of photos you can use on passports: