Micaiah, Fire Emblem: Radiant Dawn

The woman in the image is dressed in a costume inspired by Micaiah, a character from Fire Emblem: Radiant Dawn. The costume consists of a red dress with a white collar and black leggings. She has long white hair and is wearing a blue scarf around her neck. Her right arm is raised, holding an object that appears to be a small figurine or charm. The background of the image features a blurred outdoor setting, possibly a forest or park, with trees and greenery visible through the archway behind the woman. Overall, the image suggests a cosplay or fan art representation of Micaiah from Fire Emblem: Radiant Dawn.