I think the creativity is great! I repurpose like crazy too (most of our coop was free for this reason). I would have liked to see interior pics and more specifics on sizes. Otherwise it was a great read.
As a story of how this person built their coop, it's short, engaging, and well illustrated. And the finished result looks great, including the sign. As something for others to follow, it's less successful. For anyone who can look at a picture and copy it reasonably accurately, this article offers great guidance on building a coop on a budget. It demonstrates that foraging for building materials in other people's cast offs can deliver good results, and asking local businesses for freebies can pay dividends too - big dividends in this case: that roof looks really weatherproof and low maintenance! And repurposing an old gridiron as window protection is brilliant!
What is missing is a plan or diagram which would help the novice coop builder to follow this design; instead they just have to keep looking at the different photos to try to work out approximate sizes of components and how they fitted together. What may be self-evident to the author may not be to someone looking to build their first coop. Of course anyone building from foraged materials is going to have to adapt to fit what they've got, but some indication of basics, e.g. the order of putting the different bits of the coop together, would be helpful to anyone wanting to follow suit. I am also left wondering how it's cleaned out; it is obvious from the photos where the main access to the wired part is for humans, but not to the boxed part; does the whole other side come off for example (the window is grilled, the nesting boxes are on the back, the wired side has the pop door)?
The only things missing are the coop designs and details about what you did on the inside of the coop.
I like that you made the back of the nest boxes open instead of the top! I wish I had done that too. It would have made cleaning out the nest boxes much easier!! I also like the straps you put on it to hold the back of the nest box from falling too far open.
I like that you used ordinary things in extraordinary ways ( the oven grate!).
