it’s the scale pattern being inconsistent amorphic blobs, the underside of the tail being on the side of the tail, and the inconsistent and asymmetrical blobbiness of the dragon’s horns and eyebrow (you can even see a point where the AI couldn’t decide where the eyebrow ridge ended and the pupil began)

that and general lineart weirdness a human generally wouldn’t commit, like the thin line randomly coming off of the thick line on the neck pattern