francesca lucchini, strike witches, world witches series, artist request, official art, 1girl, armor, black hair, blush, dark-skinned female, dark skin, fang, feet out of frame, green eyes, halloween, halloween costume, holding, holding weapon, jack-o'-lantern, long hair, moon, night, no pants, open mouth, panties, pumpkin, standing, star (sky), striped clothes, striped panties, tree, twintails, underwear, weapon