This is Judith, she killed a man. Not really, she’s the main character in a very old story called Judith and Holofernes.
Now she’s a work of art by Gustav Klimt (Judith I, 1901). Painted in oil and gold leaf on canvas in a Jugendstil style.
Normally Klimt’s painting resides in the Belvedere, Vienna. Now it’s visiting the Gemeente Museum Den Haag in The Netherlands. See it there until 19 June 2016.