Maybe her torso is a little too broad, I think her left side needs drawing in a little,I'm not sure, but I'm pretty happy with her so far!
The bottom left and right faces are the ones I'm going for. They'll be similar to Haku's from Samurai Jack in that they'll have similarly exaggerated expressions. Due to Oni also being a shape-shifter I can use that to really push his emotions. Now, onwards! :D