If you have constructive feedback, it seems like the photographer is open to it. It’s not dunking on anyone to say “hey great work and cool idea, just so you know the image looks a little “off” on my screen, possibly due to my accessibility settings, which are blah blah blah… hope this helps, thanks for the great work!”

Nah, hackthebox and many other red team simulation type sites have strict rules of engagement. You’re there to solve a puzzle as defined by hackthebox, not get around the puzzle by hacking hackthebox.