Although The Wanderer is an OC, she lacks too much to be defined as a Creepypasta character. Much of her information is too vague; even if she’s given theories as to what she might be, she’s still lackluster.
My suggestion would’ve been to give her some background information. There needn’t be a backstory if you decline. Take Necro, Slenderman, Mr. Widemouth, The Rake, etc; all seemingly don’t have backstories to them, but they do have sightings or accounts on each character. Not enough to know what they are, but enough to understand these characters.
Try victim accounts, descriptions of behaviors, or even a brief summary of what she is. Maybe even answer WHY she kills people.
Is she haunting the street? Did something happen for her to specifically target people on the road?