Has anyone else done the "Create conversations about an image" study?

I followed the instructions and spent 20-30 minutes writing up a full AI-style conversation for an image, and then I realised that I'm meant to be doing 9 further images with an overall 30 minute study window.

I've never had any problems with a study before, but I'm wondering if I've missed something here. I can't imagine completing it without spending 3-4 hours on it.

edit: further note - the study tells me that posing as the AI I should be writing "a paragraph or two" per turn, with multiple turns per picture expected. With 10 pictures to complete, I'm struggling to see how this is possible.

NB - I note the currrent average completion time is 57 minutes when 30 minutes was the expected duration - I wonder if people actually finished entirely or not?

Edit: Now 67 minutes average.