Great story, I'd never imagine its your first one since you really did a great job with it!
Great positioning and effects, it really gives a lot of character to the clickies.
Also many nice little details, I like how you imply at Meg's family being native american with the doll and the wall decoration at the dinner table. It's a nice subtle touch.
Did she play poker with her sister the evening before? And her baby sister is adorable.
It's obvious Nathan is popular, half the kids in class wear the same hat. I bet they want to be just as cool as Nathan.
Also love the kid walking back up the slide, the entire playground really captures what kids do on playgrounds during recess.
A shame Meg did not get to finish the race, the other kid seemed unharmed though, and Meg seems to have good company as well! Good thing she was wearing a helmet!