This is an intriguing entry.
I really like your animation style here, kind of reminiscent of the show Shin Chan (one of my favorites!)
Also, your choice of camera angles added a nice perspective to this dangerous, yet serene world you've created.
I would love to see more adventures of the exterminator and this mysterious environment in the future. In a sequel perhaps?? :)
Anyway, great job on this.
I'll definitely be on the look out for more of your future works.