Applejack as Mario? Fit's perfect! It's an great idea that she's bucking the barrels from Donkey Kong! Even the read apples she has as her cutie mark fit to Mario. So, Donkey Kong stands for Spike than, I guess. It's almost the same scenario like in S2E10. You really have a talent to foresee what will going on (or almost going on) in MLP: FiM in the future! That's already your third fanart I see that shows something like that. I almost believe now that you're really able to take a look into the future sometimes.