The sculpted caricatures of David O'Keefe are fascinating, in that they retain the likeness of the subjects, while at the same time adding a grotesque nature to them.
What's interesting in the caricatures are believable, while including the obvious distortion of their features. It seems O'Keefe is attempting to reveal something he feels is on the inside of the person, by enlarging certain aspects of their looks.
Of course he could just be having a lot of fun, which I'm sure he is either way.
But knowing artists, they always are looking at something from a different way than others do, and I'm sure O'Keefe is saying something through all his interesting works.