A flawless depiction of childhood and authority
Well, judging this art by its merits, I'm going to have to say it's a job well done. I believe that there is actually a distinction between "badly-drawn kiddy-art", which is utter crap, and "professionally-drawn kiddy-art" which is often a flawless representation of childhood.
Just to get a little more analytical, I see the subject matter of this artwork as a child's different perspective on Thanksgiving, which is not deemed "correct" by oppressive authority (much like in an all-controlling communist state) but represents the truth of Thanksgiving (to the best of my knowledge, since I'm Australian and know little of Thanksgiving). It shows authority's need to assimilate everyone into the same mindset and to disregard truth.
Now, art is subjective, and there is no way to assign a "number" or "grade" to creativity or people's ideas, as represented in the artwork, so you get a 10, just for kicks.