Thanks for the well written review!!
This film was a big experiment, as I my goal was to do a much longer version of Sneaks episode as fast as possible. You are very right that the animation changes throughout the whole film, so its never quite constant, as I was trying some things with limited animation as well.
Its really interesting you mentioned the Big Snit!! I knew about this film from the animation books, but I never really saw it. So now looking at the youtube clips, I can see some similar design choices there with Sneaks (big nose etc.).
The BG and other characters are very bland, indeed. I didnt really focus on that, as all the effort I put on Sneaks, to make him stand out more than in the previous cartoon of him (Ep.1). Its true that there were many gag opportunities that I missed, but I hope in the future episodes I will be more prepared to squeeze every bit of a situation :)
Thanks again , and I'm glad you enjoyed it!