Ridiculously engineered studio lighting and HDR, I would suppose. Stuff can start looking very artificial when you start bringing in good equipment.
We may be witnessing a fascinating trend : AI images are making professional-grade imagery look like spam, and natural lighting and blurry images are becoming the new "human" esthetic.
We may be witnessing a fascinating trend : AI images are making professional-grade imagery look like spam, and natural lighting and blurry images are becoming the new "human" esthetic.