character, transgender witch, Harry Potter universe, (18yo), green eyes, short purple hair, light makeup, black robe with house crest, wand in hand, casting spell, standing, Hogwarts castle background, enchanted forest, magical creatures, dusk, warm ambient lighting, dynamic angle, full body shot, detailed textures, velvet fabric, silver jewelry, leather boots, confident pose, fantasy setting, soft-focus background, vibrant colors, action-packed scene.