IMPORTANT UPDATE – Photo Brightness Issue
I wanted to share my experience in case anyone has the same issue.
Yesterday, I tried taking photos at London Drugs, Shoppers, and other locations, but every photo was rejected with:
“Brightness is too dark or too bright.”
I was stressed because IRCC says not to edit or change the photo settings, so I didn’t use any editing tools.
All my photos were taken while wearing black. Today, I changed my clothes to a light green top, took a new photo, and it was accepted immediately!
So, in my case, changing from black to a light color solved the problem.
Hope this helps someone!

Wishing everyone the best and hoping we all get our PR cards very soon.