Well, this is really nonsense, unfortunately.
First, all images could've been painted by a human.
Second, if I always click the left one, it says Your result is 5/10. A turing test is to test "a machine's ability to exhibit intelligent behavior equivalent to, or indistinguishable from, that of a human". If I – presumably a human being – score 5 out of 10, the test is not a Turing test after all, because humans aren't tested in a Turing test.
Edit: My observation was obviously wrong. Thanks for pointing it out.