The snake is Satan, as per this passage from Revelation: And he laid hold on the dragon, that old serpent, which is the Devil, and Satan.
The "new Eve" was Mary. Mary gave birth to Jesus, whose death on the cross redeemed the original sin of Eve. Mary crushed the serpent in doing so. Mary is often depicted stepping on a snake.
The snake is Satan, as per this passage from Revelation: And he laid hold on the dragon, that old serpent, which is the Devil, and Satan.
The "new Eve" was Mary. Mary gave birth to Jesus, whose death on the cross redeemed the original sin of Eve. Mary crushed the serpent in doing so. Mary is often depicted stepping on a snake.