Oh! Something I took a part in on HN. That's a first. Almost everything there was practical. Highly recommend checking out all of Max's work, beaming with creativity.
So its not mentioned on the post but is this your actual passport photo that was accepted and used and you have it on your physical passport right now?
Fifteen years ago I did my own in Canada, and just wrote my own name and phone number on the back as at the "photographer". They gave me the hairy eyeball at the passport office though but let it slide since the pics did meet the requirements.
After that I got them done at the local framing shop.