A powerful and focused 30-year-old African American woman stands gracefully in front of the majestic Hogwarts School of Witchcraft and Wizardry, practicing her advanced magical skills. Clad in an elegant black and gold Hogwarts robe, she wields her wand with precision, a glow of magical energy surrounding her as she casts a challenging Dark Arts spell. Her expression is one of intense concentration and resolve, knowing she must hone her skills to protect her students from an imminent threat. The scene, set during the enchanting golden hour, bathes the castle in warm, muted tones with hints of blue and purple, creating a captivatingly magical atmosphere. The composition, reminiscent of a cinematic movie still inspired by the Harry Potter universe, reflects her years of disciplined practice and unwavering passion for the magical arts. The iconic Hogwarts castle stands grandly in the background, symbolizing the rich heritage of the wizarding world, while she embodies strength and determination, unafraid of the challenges that lie ahead.