hmm good question! Maybe a tag specifically for the pose would be better? That way if more art like this pops up on here, it won’t clutter Jack-o’s character page with characters completely unrelated to her that are copying her pose. Like “Jack-o’ pose” or “Jack-o challenge” something like that. Lots of people have been replicating her pose on Twitter with the hashtag #jackochallenge
We likely should, if I am to suspect anything.... artists will take to this challange rather swiftly.