You can update your staff members' images at any time.
To do this, head to Staff >> Click 'Options' > select 'Edit details and permissions':
On the next page, scroll down and click the 'Choose a File' button to upload an image from your computer, import a file from a URL, or take a picture with your device camera and upload it instantly:
Once done, click 'Save'.
💡If your image has trouble saving, crop the image slightly and save.