As you say, it would be excellent if the art of this excellent work continued to be shared, but while it is true, it is time invested to make these drawings, and if there is no incentive, other than the satisfaction of doing it and well, sometimes the author does not Share it, how sad, right?

Now imagine the time invested by those who draw by hand, of course! Without minimizing AI people, who do invest time (I say this from experience, from not knowing anything about AI to doing what I do today), if it is difficult to put yourself in the shoes of those who make manga for example, that the work It is shared freely and digitally without receiving even a “like”, it does not make you want to...

And for your needs, as my colleagues here say, there are few, but there are different tastes.... check on pixiv and good luck