You need a digital photo to apply for a passport online.
You must get a new photo when you get a new passport, even if your appearance has not changed.
Your photo must have been taken in the last month.
Your application will be delayed if your photos do not meet the rules.
clear and in focus in color

Be facing forwards and looking straight at the camera have a plain expression and your mouth closed have your eyes open and visible not have hair in front of your eyes not have a head covering (unless it’s for religious or medical reasons) not have anything covering your face not have any shadows on your face or behind you Do not wear sunglasses or tinted glasses.
You can wear other glasses if you need to, but your eyes must be visible without any glare or reflection.