Fulk; what is not visible in Gary's second picture is that I am clipped into the ladder via a karabiner on my main mallion. The ladder itself is backed up with slings. Obviously, there's still scope for the ladder to snap so this is by no means the right approach to ladder safety and you are right to highlight that ladders should always have a separate independent belay... good practice should always prevail.
For Gary's first photo, the model is clipped into the separately belayed rope... although via a belt which of course is not intended or rated for this purpose... so yes, bad practice :spank:
Anyway, let's not let this thread turn into a discussion on ladder safety...