Another possible theme could be the exploration of the unknown. Just as seeing through a dark glass gives an unclear view of what lies beyond, the novel could be about characters venturing into the unknown, whether it's a new place, a new relationship, or a new state of mind, and having to grapple with the uncertainties that come with it.
Another one could be 'Rebecca' by Daphne du Maurier. It has an air of mystery and a complex exploration of the past and human relationships, much like many works that deal with seeing things 'through a glass darkly' in the sense of not fully understanding the truth at first.
Kemono comics usually have unique art styles and often feature anthropomorphic animals as characters. They can cover a wide range of themes and genres.
You might want to check out MangaHere or Manganelo. These sites have similar manga collections and features. But keep in mind that the legality and content quality can differ, so be cautious when using them.
Sorry, I don't have the latest information on political cartoons for this week. You might want to check some major news websites or cartoon sections of newspapers.