The Human Characters Look Like Plastic Marionette Freaks
Human characters in fully CGI animated movies always look like plastic talking mannequins.
They should focus on animal characters, aliens, or other creatures with CGI, but whenever they put humans into a CGI animated film , it never looks good.
It's the same with every Pixar movie, Beowulf, Polar Express, Christmas Carol, FF: Spirits Within, the list goes on...
That's why Toy Story worked so well: The plasticy look of the CGI fit perfectly for action figures and plastic toys, and they kept the human characters to a minimum. Because we all know how horrific Andy and Sid looked.
And this movie, it's the same thing: The humans are freakist, bug-eyed, plastic-skinned, googly-eyed deformed monstrosities. CGI does not work well recreating human characters. Don't forget those... 'attempts' to re-create a young Carrie Fisher and Mark Hamil.