Fan Casting Sylphrena "Syl" Honor Spren in Cosmere (stormlight, mistborn, elantris, warbraker, etc)

In the Physical Realm, Syl can take on a variety of appearances, including a ribbon of light, a flurry of leaves, flame, or a small cloud. However, she prefers the form of a young woman about a handspan tall, with an angular face and flowing hair that fades into mist behind her head. She usually wears a long, flowing dress, of a girlish cut. She will often augment it with various other articles of clothing, like a cap, a jacket or an umbrella, or swap it out for similar attire, like a havah with a safehand. Regardless of her clothing, however, she always goes barefoot.