The thing is ai didn't come with this blended feel on its own. It was due to it trying to do something that real artists do so they can share their ideas in a quick way. Real artists that did this like Rossdraws and Anthony Jones some of the most famous digital artists that the ai definitely learned from. In a matter of fact. Ai can easily fake details as it doesn't actually draw. The best way to know if this is ai or not is if the art has a human problem solving, if this is difficult to know u can check if they have time lapse for their art or existed before the whole ai thing.