When sharing your link, you can either display a picture (e.g., your profile picture) like this:
Or, if no picture is set, the GetAllMyLinks logo will appear, like this:
To display your image, simply add a profile picture!
P.S.: If you’re using a direct link, add the profile picture to the safe page, and it should work.
If it still doesn’t appear, it’s likely a browser cache issue. Clear or refresh your browser/cache, and other visitors will see the picture as expected!