This is amazing. I live where you're going with the species, and I love the colors. I think you did a good job on not doing a Mary Sue OC. I also love the pose, like she's playing tag with her friends. Now I will just write random things, as I have said all that needs to be said. La la la, Rainbow Dash is the best pony, followed by Rarity, Applejack, Fluttershy. Pinkie Pie, and Twilight Sparkle, in that order. If x + y = z, what is k? I think that this math problem makes no sense. Neither does math.