It's only been three months since I worked myself through Gary Faigin's
The Artist's Complete Guide to Facial Expression.

And, yes, I considered Guybrush's plethora of expressions very impressive. I assume that lots of hard work went into that, and it REALLY enhances game immersion. However, not many characters receive the same treatment Guybrush did, and remain flat; most expressions are Guybrush-only.
Nonetheless, I appreciate the effort very_very_much. It's what so many other games still lack. Get the expression engine to work with other characters as well, and you'll have at least one thing in which ToMI surpasses the previous games without doubt.