I'm using SketchBook X on my iPod, it has no line smoothing. It's one of those free apps with only three layers and basic tools. And I forgot to mention something. When I decided to practice drawing foals, I chose to ponify the main character from "Detective Conan/Case Closed" for this.
And I decided to draw a second character from the same series. I tried a new angle and looked at some of my pony toys as reference, but it still feels awkward somehow. Also, that hair. You have no idea how hard it was to make that hair work without making her head look deformed. There's also some basic color info.