This turned out really well I think. Here's a test animation of Applejack running that I did in two days. It's a test because I'm gonna use the run cycle for a My Little Pony movie I plan on making soon!
This run cycle is from the beginning of Season 2 Episode 14 The Last Round-up.
If you want your My Little Pony Original Character animated, then visit this page for details.
Well, that part of the episode had her without a hat (Apple Bloom had it). And I agree, awesome animation! It is a little jumpy when the animation restarts, though, and when you use it you may want to speed up the frame rate.