Just now, as I was searching for Ksitigarbha Bodhisattva images, I found a link to a few Ksitigarbha Bodhisattva images. As we know that, Ksitigarbha Bodhisattva's vow is to save all beings in the hell until none is left. This Great Vow doesn't mean that his vow is only limited to all beings in the hell. But this is to represent the Greatness of the vow cause the most suffering beings are in the hell.