Looking death in the eye
Gaston had it coming from the very beginning of Beauty and the Beast. Belle was never going to fall for him with his arrogant and ignorant attitude, and his clash with the Beast was never going to end well.
But if you look very closely, you can see a clever little detail at the moment when Gaston meets his doom. As he falls, there are tiny skulls in each of his eyes, underlying that this is the moment it will all end.