The source of post #4453175 is a third-party news account. The other three images from the same source, post #4453173, post #4453183, post #4453165, were also posted on Twitter by their official artists. The third-party account posted earlier than the official artists. It likely took the images from the official site, which are pixel-perfect duplicates. Luckily, the images of the different Twitter sources are completely identical, so I was able to replace the source directly.

NoriZC is the only one that didn't post on Twitter, so I uploaded the version he posted on Lofter a few months later. It's identical to the official site version but pixel-perfect duplicate to the Twitter version. This probably has something to do with how Twitter processes their images differently.