Kakashi sensei!
naw jus playin but the character does remind me of kakashi with the mask, but i agree with the fellow below me. to better understand his emotions you should do something with the face mask. However, should you decide to stick with the face mask your going to have to over exaggerate body language, and have emphasis on his eyes. the eyes are usually what bring a character's personality about. whether they're angry, happy, or sad.