Well, the cutie marks were a pain, since the scene in the show is not clear enough to show the cutie marks clearly. I also went crazy with Rarity's hair color, just in case you didn't know.
Once again, I used the paintbrush in Adobe Illustrator, but I also used the paintbrush in GIMP a little bit.
Yay for posting at 1 in the morning!
Feel free to copy/download all you want.
Rarity and My Little Pony: Friendship is Magic (c) Hasbro and its subsidiary, The Hub.