"A realistic and eye-catching Black Week banner for a canvas art store. In the background, a variety of beautiful, framed canvas paintings, showcasing different styles such as landscapes, abstract art, and still life. The lighting is soft and warm, highlighting the details of the paintings, with subtle reflections and shadows. The foreground features bold, modern text saying 'Black Week Sale - Up to 50% Off', with elegant typography, prominently displayed. The overall mood is sophisticated yet inviting, with a touch of luxury. The colors are rich, and the scene is well-lit, emphasizing the beauty of the artworks. The banner is designed for web display, with a clean, professional look --ar 16:9  --s 250