Introducing the Danbooru 2019 version link, an animated character image database. There are about 3.7 million images and about 29 tags are attached per image. Examples of tags include “1girl”, “solo”, “long_hair”, “highres”, “smile”, and “open_mouth” and can be used for various purposes. If you go to the link page, related resources are well organized.
Like DeepDanbooru, a code that automatically attaches a tag when an image is uploaded is also publicly available, and it can be used for various purposes such as image generation, image analysis, and image search. From the artificial character point of view, it seems to be a dataset that plays a similar role to ImageNet.