Artemisia Gentileschi painted two versions of Judith slaying Holofernes. The original (c. 1612) is in the Museo di Capodimente in Naples and the later copy (c. 1620) is in the Uffizi in Florence. Pic 1 is the original. Pic 2 is the copy.

Which one do you prefer? which one is technically more impressive? What are the main differences? Why were there 2 versions painted?