While I haven’t played with tools like DALL-E much every image I’ve created (Caused to be created?) has the same look. (Man resembling Keith Richards; old man holding a rock; man driving old Jeep; old Hindu man meditating.)
Writing in The Atlantic (paywall), Caroline Mimbs Nyce takes a stab at answering that question.
Two years into the generative-AI boom, these programs’ creations seem more technically advanced […] but they are stuck with a distinct aesthetic. The colors are bright and saturated, the people are beautiful, and the lighting is dramatic. Much of the imagery appears blurred or airbrushed, carefully smoothed like frosting on a wedding cake. At times, the visuals look exaggerated.
Someday computer-generated art may shed its weird, cartoonish look, and start to slip past us unnoticed. Perhaps then we’ll miss the corny style that was once a dead giveaway.