As far as Im concerned, if you use it, just give me credit for drawing it, and if you want to change the facial features, crests, and hands ('cause let's be honest, they suck xD) go for it! I gave you the house colors inbetween the two. The order is Slytherin, Ravenclaw, Gryffindor, and Hufflepuff. Alrighty...That's it :3