This is Papyrus after you kill him. Yeah, I was in a genocide mood then.
Frisk with a Santa hat. It was near Christmas, so don't judge me.
Again, Toriel after you kill her. Explanation: I was in a genocide craze.
Chara. Still the same craze. Yuppp...
Undyne 'cause she's my favorite character. She makes stuff fall from the ceiling. And burns down houses with ease.
Sans. I kinda wanted to do something like on one side, he's in a pacifist route, and the other, he's in a genocide route. I dunno, I think it looks cool.