In case you don’t know the invert selection trick or how to easily outline your pixel art:

http://lutnik.tumblr.com/post/84204137478/

How to create a Binary Eraser:

http://pamikoo.tumblr.com/post/7771000686/

craptastic pixel tutorial
pun provided by my amazing little sister

Toriel is a part of Undertale and belongs to TobyfoxGames
art by