"A mock-up of a large billboard banner, presented in a 3D, realistic style. The banner is clean, with sharp edges and smooth surfaces, displayed on a simple, sturdy metal frame. The design is super HD, flawless, and minimalist, emphasizing the banner's texture and details. The background is plain white to maintain focus on the banner, with no distractions. The lighting is soft and evenly distributed, highlighting the material of the banner while creating subtle, realistic shadows around the frame. The overall presentation is modern, simple, and professional." --ar 4:3 --style raw