Rip it apart? Yay, I'm in a bad mood, time for some venting! Kidding...OK, so I see a lot of things that could just be improved the littlest bit to make your drawing in general better. You're just lacking that edge of technique, and unfortunately it's kinda obvious, even though this is still a good picture. So, just some advice...
First, the actual structure of the person. Pretty good, although the ears are kind of big. Of course, I don't know the character, but he also looks young, so if he's not my suggestion is to find those areas of his face that can make him older (AKA smaller eyes/ears, more prominent jaw, different expression). But it's a good foundation.
Second thing's that you run your pen/pencil across kind of wild instead of controlling your strokes, which you can do for any scratches or whatever on his face, but you want one general direction for all your strokes (see how your strokes go left on the neck and right on the face? Makes it look less natural). The hair's not *too* bad, and your eyes are really pretty good, but they're a little big. But I really am just picking on you - this is still a good drawing, and shows plenty of potential for drawing something even better with a little technique.
Reading is one form of escape. Running for your life is another. ~Lemony Snicket
Hi. I'n not a super lost fan, but i've seen it, so here are my suggestions. More space around the eyes, wider face, smaller ears(slightly), And older looking, you know wrinkles and such. The face is a bit uneven, try to make it symmetrical. and he's not THAT bad, he's just confused.
