A determined 30-year-old African American woman stands confidently in front of the majestic Hogwarts School of Witchcraft and Wizardry, casting a powerful Dark Arts spell with her wand. Her thick, curly hair is illuminated by the warm golden hour light, contrasting with her black and gold Hogwarts robe. Her face is etched with intensity and focus as she channels magical energy through her wand, its tip glowing brilliantly. With years of practice, her movements are both precise and graceful, showcasing her dedication and skill. The enchanting Hogwarts castle looms in the background, bathed in soft hues of blue and purple that enhance the magical atmosphere. Her stance exudes strength and determination, ready to protect her students from an impending threat. The scene is cinematic, capturing the essence of the wizarding world with a touch of modern flair that's reminiscent of a Ryan Coogler-directed film. The colors are tastefully muted to evoke a sense of mystery and magic, bringing the world of spells and enchantment alive.