Here are some best practices:
• Submit high resolution jpeg/png images only.
(Low resolution or blurry photos will not be accepted)
• Feature only yourself in the photo
• Remove all makeup
• Push hair back from face.
• Take picture of full face. Do not crop in.
• Use the same camera, settings, lighting, background and camera angle for each photo
• Do not alter or artificially enhance any photos
• Use a plain background in a well lit room to limit distractions in the photo
Here are some example photos: