I just googled her. My monitor exploded with color, lol.
Well, the colors in your deviation make sense, though lol
I mean, at first, pink ponies may seem kinda odd, but then consider 1), the big eyes, forehead, bifocal vision (eyes pointed forward instead of sideways), and other anatomic traits aren't pony either (like how pinkie slept in a ball, then scratched her ear like a dog), so really, we can safely say they're not Earthly equines. 2) Once you've covered that part, realize animals come in all kinds of colors...
Yeah... I kinda did just imply they're aliens and not ponies, btw, lol. but I am an aspiring sci fi writer, so... But whatever they are, they're not ponies as we know them on Earth lol.