I downloaded this from the homepage of AIC's website many years ago, but this phone card that says it was from June 2002 is the only evidence I can provide to support that: https://www.suruga-ya.jp/kaitori/kaitori_detail/978062476 I suppose that qualifies it as official art. Internet Archive has a capture of the page it appeared on, which identifies the artist as Matsumoto Fumio, but the image itself wasn't saved: https://web.archive.org/web/20020802121159/http://www.anime-int.com:80/info/tereka/index.html However, the filename of the broken image is wall200206.jpg, so it probably was this image.
This should probably be put in the Current Events tab as this was posted during the time the Limbus Company subreddit banned anything remotely NSFW even if it was accurate art of official skins.
The "Heaven's Door" activation gesture here seems to be from Kishibe Rohan wa Ugokanai live-action series (see first 5 seconds of this), rather than Diamond wa Kudakenai (where Rohan scribbled in the air to activate it) so I'm retagging this and the child post.
