> It's just doing what many human artists would do

I really don't think so. If I paid a human artist to make the prompt in the title, and I didn't explicitly say "Indiana Jones" I would think it should be fairly obvious to the human artist that I do _not_ want Indiana Jones. If they gave me back a picture of, clearly, Indiana Jones, I would ask them why they didn't create something original.

I actually don't think it would be obvious. By not explicitly saying Indiana Jones when so obviously describing Indiana Jones, there is an implication present. But I think many human artists would probably ask you, "Wait, so Indiana Jones, or are you looking for something different," before immediately diving in.

Meta-comment: the use of Indiana Jones, a character that was a very intentional throwback to the "Pulp hero explorer" from the childhoods of its creators, in this example to ponder how one would get "Indiana Jones without Indiana Jones" is quite humorous in its own right.

Indiana Jones is already a successful permutation of that approach. He's Zorro, Rick Blaine, and Christopher Leiningen mashed together with their serial numbers filed off.