Background Pony

Based on the story Background Pony by Shortskirtsandexplosions (link), chapter 1
(I've read only first two. Still, had this picture in mind for a loooong time (about a year) and started this about five months ago.)

No fade effect version: fav.me/d6umfd9
Background only: fav.me/d6umf62

Spent a lot of time on this one. Tried to make it perfect, but I guess this is the best I can get from my current skills and also the program Paint tool SAI.