/ic/ - Artwork/Critique

I was trying to do a construction study (upside-down, since faces specifically give me compulsive symbol drawing disease), and somehow the left side of this guy's face shrunk considerably, but I can't figure out what went particularly wrong getting there.

Yes the chicken scratch is bad, I'm trying to get a good idea of form before I work on it. Also drawing lines slowly, even smoothly, makes them very squiggly at the pixel level with my tablet, not sure if I'm just shakyhands or if it's an issue with the tablet.