PROS:
The stop motion animators heavily carried this film, they deserve 5 stars alone! Along with the character designers!
The overall style, colour and moods where brilliant!
However, I think they focused/budgeted too much on that fact..
CONS:
What is going on with the editing? Times in the audio it felt poorly cut with transitions, slow-mo scenes could've been worked on a little more or different techniques used. The sound department was okay, but could've been improved for example; adding more bass especially for Buffalo Belzer cause he felt more so 'underwhelming'. Soundtrack was alright, but some felt out of place or not on theme. The pacing was all over the place, especially everything at the end feeling rushed. There were way too many characters to focus on, the voice acting most characters felt dull and not as animated. Plot holes, I wanted to know more about Sister Helleys and Manbergs backstorys. Either making this more into a series or cutting characters could've resolved this.
For the movie to be called Wendell & Wild, it wasn't really centred around them. They felt more like comedic relief characters, either changing the title or providing more of a backstory to them could've benefitted the film.