EDIT 2:
I think, but am not sure, that the creator of the art in the video is a Steam artist. This is the link: https://steamcommunity.com/id/granuke...

EDIT: I have been trying my hardest to find an artist for this image! I know I shouldn't have used it if I didn't know who the artist was in the first place and I apologise for that. I found this image through someone using it in their own youtube video, and was under the impression it came from an anime. I am continuing to look for the artist. I appears no-one else online knows who the artist is, and that it may in fact be from an anime

I do not own anything!
original video:    • Devil town V.2