Definitely stronger!
The fence is still dividing the composition in half pretty strongly. What if you shifted the fence to the right so it was more on the 2/3 line rather than the half? You could even push the scale a bit too. The foreground girl and squirrel could be bigger and closer and the dogs and class going on could be smaller and farther away to still fit in the remaining 1/3 if you shift the fence.
I just went through and watched the first few critique arena videos and compositions cut in half were picked out a lot.
The concept is so cute!! Love that it's not the school we all thought of. Very creative.