Create a premium editorial portrait poster featuring a single subject from the chest up, looking slightly upward and away from the camera with a calm, confident expression. Use a high-contrast black-and-white portrait with crisp facial detail, soft studio lighting, and subtle film grain. Place the portrait inside a large centered colored rectangle (choose a single bold background color such as coral pink, emerald green, mustard yellow, royal blue, or crimson) surrounded by a wide warm ivory/off-white paper border with a subtle vintage texture. Add a large semi-transparent number "10" vertically along the left edge in a matching tone of the background color. Keep the typography elegant and minimal. Place a handwritten signature of the subject in the bottom-right corner using the same accent color as the background. The subject wears a simple black crewneck sweater with no logos or patterns. The overall aesthetic should feel like a luxury magazine cover meets modern sports/editorial branding: minimalist Swiss-inspired layout, premium typography, clean negative space, balanced composition, timeless design, matte paper texture, subtle print imperfections, cinematic lighting, ultra-sharp focus, monochrome portrait with selective color background, sophisticated and iconic. Style keywords: editorial portrait, minimalist poster design, monochrome photography, luxury branding, Swiss design, premium magazine cover, cinematic studio lighting, Kodak Portra-inspired tonality, fine art print, textured paper, modern typography, elegant, high-end, photorealistic, 8k. Negative prompt: Low quality, blurry, oversaturated, cluttered background, multiple subjects, harsh shadows, distorted face, extra limbs, text errors, watermark, logos, excessive accessories, busy composition, cartoon, CGI, low detail, noisy skin, poor anatomy.