Here's the problem. The artist appears to be chunbuchou, but I'm not sure the twitter account https://x.com/xundaixun is his or an upscaled reposter acount. Can anyone, especially a Chinese speaker say for sure? I just don't want to drop the twitter link in his profile.

https://i.pximg.net/img-original/img/2023/01/18/13/31/06/104613386_p2.jpg is from chunbuchou's pixiv but it's a lower res copy. Possibly the larger copy is from his Weibo or Lofter account which I can't access.