The first thing I noticed was that before I read the description I had already thought of the warner bros style (specifically animaniacs).
Good Stuff: 1. Your lines are nice and clean and I recognized the aesthetic immediately. 2. Great emotional range, and lots of varied emotions conveyed.
There are a couple of them that are a little unclear what's going on, but in the context of a full facial expression would make more sense. I'm thinking of the winking ones in the top left and the closed eyes ( I think???) directly to the right of the two that are labeled with arrows as closed.