Perhaps after implementing an admin view that can edit tweet data, add a way to mass label each page of 50+ images as style="manga" or style="hentai" or style="other".
By toggling an option to "labeling" you will open up this view.
Each image is in 'selected' state by default and clicking mass label with the corresponding label will label all selected images to that style.
So if a page was all manga style images then all you have to do is click mass label.
Perhaps after implementing an admin view that can edit tweet data, add a way to mass label each page of 50+ images as style="manga" or style="hentai" or style="other".
By toggling an option to "labeling" you will open up this view.
Each image is in 'selected' state by default and clicking mass label with the corresponding label will label all selected images to that style.
So if a page was all manga style images then all you have to do is click mass label.