To ensure your passport photo is acceptable:
1. Verify that your entire face is visible in the frame.
2. Check that the background is plain and light-colored, with no pattern or shadow.
3. Ensure the lighting is even across your face, with no harsh shadows.
4. Confirm that your expression is neutral - no smiling or frowning.
5. Remember to go accessory-free by removing hats, jewelry, or glasses.