A female horse's name should be beautiful and elegant. Like Shadow, or Firefly. She should have a whimsical name, one that gives her an aura around her of true elegance. Felicity or Felicia are good names for a horse that has potential for winning some grand event. Here are some of my suggestions: Shadow, Firefly, Felicity, Felicia, Misticfreedom, Autumnsun.