Gourmet Cheeseburger Discount Promotion

Generate an ultra-realistic image of a promotional advertisement for a gourmet burger, featuring a mouth-watering cheeseburger with a toasted sesame seed bun, melted cheese, grilled bacon, fresh lettuce, juicy tomato, and thinly sliced red onion, surrounded by scattered ingredients like tomato slices, onion rings, and lettuce leaves, with a prominent 50% discount offer displayed in large font, accompanied by a call-to-action 'Order Now' button and a subtle background gradient that enhances the overall visual appeal, with a focus on high-end food styling and realistic textures, in a style reminiscent of luxury food editorial photography, with accurate lighting, natural shadows, and detailed textures, without any watermarks or logos.