I used to do these all the time. Let's get it. :3
So the story starts off with a seemingly uniform neighborhood. A whole bunch of squares everywhere. A square woman and her kid are sitting on the porch when a circle girl moves in. She looks like a Sally to me so I'll call her Sally. Sally brings color to everything and rounds out everything. Right off the bat, I'm loving the visual metaphors. The Square Mom is very aversive to Sally, which is very understandable seeing as she basically infected the square girl. Also she tried to shake with her left hand. Back in my village, she basically just declared war.
Anyways, Sally continues trying to get in with the square people. Square Mom is not having it. But the kid is curious, and also miserable. They have a bike with square wheels, of course she wants to meet the round girl. After one really close call where the kid starts literally transforming, Square Mom builds a fence. While I understand the metaphor at play, I'd do the same thing as a mom. Because what do you mean my child touched you and is now going through metamorphosis.
So Square Girl doesn't listen. She climbs over the fence and now everyone is round. Hooray!
This is actually a pretty tame start to use to continue these. I don't really see a deeper message except to just be open to new things. It was quite enjoyable and the colors are pretty. 6/10.