This is the version by Raja Ravi Varma, the famous Indian artist who was influenced by the Dutch portraitist Theodor Jenson. [The fusion of classical Indian and Dutch Impressionist styles made Raja Ravi Varma one of India's greatest artists. As Aatish Taseer rightly observed in the novel "Stranger to History" that I reviewed, the world is richer in its hybrids.] This version shows Murugan in his six-headed form with two consorts and lots of different weapons. The serpent is bigger than before, but the peacock seems to have the situation under control.
Here's a more modern rendition that I really like. I couldn't tell who the artist was, but here's the site I got it from. They missed the serpent, though.