Foreigner-class Servant from Fate/Grand Order. The eponymous Witch of Salem, she is also known as "The Silver Key".
She has white or blonde hair that is long or very long. Sometimes wears a black hat or oversized witch hat. Tends to be depicted in voluminous clothes or just black panties with no bra and ribbons (sometimes butterfly-cut ones) coming from the bows on her neck covering her torso a little.
Also has blue eyes, but gets a keyhole mark on her forehead, white skin and red eyes while using her powers.
Hair: blonde hair, white hair, long hair, very long hair, parted bangs
Clothes: black dress, sleeves past wrists, black hat, witch hat, white bloomers
Accessories: hair bow, orange bow, purple bow, polka dot bow
Other: teddy bear, object hug