Sgt. Green Clover
This is leprechaun in the shape of a female character! Her suit is not to be confused with anything: a green hat with a sprig of clover, a green jacket, a white T-shirt, laced closer to the chest, brown pants and white-green socks.
Good luck out there!
High-quality images of Sgt. Green Clover in a PNG format with a transparent background, so that you use them as you see fit (wallpapers, YouTube, etc.):