Upon reading S. E. Wood's article, I believe the copy of the statue of Juno Ludovisis is not, in fact a fictional deity but rather a real woman. While the author states that the perfection of the features of the statue, the "serenely beautiful face, the straight line from forehead to nose" suggest that it is unlikely a statue as regal as this depicts a human, as supplemented by the saying "Some scholars, indeed, remain convinced such an ideal face cannot belong to a real woman...". This, in addition to the colossal size of the statue, which is easily above eye level when fully assembled, can be used as arguments to disprove that the statue might depict a human woman.
However, the author does make an interesting argument as to the hair style of the statue. the statue features coiled braids in the back instead of a bun, which was a style more often worn by ordinary women, not goddesses. furthermore, the presence of an infula suggests that the statue may be depicting a priestess or suppliant, as it is something that confers an aura of sanctity on a man-made/ not divine. She also argues that the statue might be depicting Livia or Antonia Minor, as notable figures, particularly those favored by the people, did often have large statues commissioned of them, even in their lives. The author also supplies that artists may sometimes take artistic liberties when it comes to designing statues and art, and so it is not entirely impossible for the statue to depict Livia, with a few minor adjustments. What lends more credibility to the possibility of the statue being Livia is that she was not just widely known and loved, but also that there is large variety in depictions of her, and some closely match the hairstyle of the Judo Lodovisi statue; with her status, she might also be entitled to wear an infuta, and hence for these reasons I believe the statue of the Judo Ludovisi is not a goddess but Livia.