I have just re‑watched the "铁山老傅日记" video and I am extremely disappointed. This is an outstanding piece of footage, yet it has no proper ending. What we expect to see in the conclusion is what the project looks like upon its full completion. I am certain that the original footage for "铁山老傅日记" definitely includes an ending. I fail to understand why you have cut off that final segment of the video. If YouTube enforces a 30‑minute runtime restriction and does not permit longer uploads, you may edit out some intermediate sections instead. Trim those parts and allocate the remaining runtime for the concluding segment. That is the correct approach to producing this kind of content. Otherwise, audiences invest considerable time watching, only to receive no final resolution. Many of your programmes suffer from this very same problem.
So do the concrete guys!
Awesome!