Nowi Concept Art Copy

Been a long time since I copied something line for line. Though it makes my stuff... </negative>. Did so to get an idea of how to draw Nowi myself later. Familiarize with hair, outfit and stuff. 
I want to ink it, but... I'm scared. I really like this and don't want to ruin it. Even if it is just a copy. ><
Time: 2 Hours