A fairy? Well most fairys use butterfly wings, but I n00b know better than to give youbog standard info! My knowledge told me of a fairy named Lumina(or something like that) from the game Sonic Shuffle! Since your art is Sonic related one way or another, I have decided that is the prime oppurtunity to show you the picture of said Lumina:

Look at her wings, and let that sink in for a while.
EDIT: I would like to tell you she is flying so her wings are in motion.