The pictures speak by themselves.
First of all, let’s confront chronologically the faces of seven young women and the one of a young boy, in which Judith’s one fits perfectly
The teeth of Holofernes and those of Goliath in the David of the Borghese gallery are, in both cases, highlighted.
Then, the red draperies, those of the Death of the Virgin in the Louvre and those of the Madonna of the Rosary in Vienna compared to those of the Judith of Toulouse.
Finally, the comparison between the white linen, the loincloth of the Flagellation of Christ de Rouen and the shirt of the old maid.