Mario complete!!

Looks better but the looking down from the side still rotates from the center of the head rather then the pivot point of the neck that connects it. Let me demonstrate what I mean. We'll use Terra for this example:
Note how her head dips to her chest and sticks forward more at the top?
Here's an animation of your Mario. Seems a bit stiff and his face looks more like he's shaking his head towards the screen. Hope this helps some with any further tweaking to come. Something like this maybe (a quick edit so it's not spectacular)