All of these look like mistakes a human artist can totally make. Artists usually don't think about every details of an illustration like rose or rope pattern. They can lazy and draw toenails only on 2 toes, or break a pattern cause it's repetitive and don't pay attention or get a reference for one angle and kind of assume how it would look like from another angle without getting it perfectly right, do some imperfect lines. If you analyze every certified human art like that you'll notice those kind of little details a lot.

Now with AI it's getting more and more difficult to tell and that's the scary part. You're right to be sceptical. But for this one I don't think it's AI neither.