Official guidelines state a ‘passport style’ photo is acceptable: this refers to both the size (45 x 35mm) and look of the photo.
The photograph should be less than 6 months old, and should be in colour. Black and white photos will not be accepted and will result in your application being returned to you or put on hold.
Ensure your photograph meets the following standard requirements.
Size and position
Look directly ahead, straight at the camera.
Avoid patterns and other images in the background. A plain, pale background is clearer.
Image must be clear
Your face must be clearly visible and the image must not be blurry.