Create a premium graphic design portfolio mockup in a professional creative studio style. Show a clean, elegant workspace presentation featuring multiple graphic design project cards arranged in a refined grid layout, a modern laptop screen displaying a portfolio homepage, and several printed posters laid out neatly on the desk and mounted on the wall. Use a polished creative-director aesthetic with soft shadows, subtle depth, realistic materials, and a high-end studio atmosphere. Include sleek typography placeholders, branding samples, editorial-style poster designs, business cards, stationery, notebook, pen, coffee cup, desk lamp, and small plant for a realistic studio setup. The design should have a clean grid layout, balanced spacing, soft realistic shadows, premium lighting, and neutral luxury tones such as black, white, warm beige, gray, champagne, and cream. Make the laptop screen show a minimal portfolio interface with project thumbnails, navigation menu, and bold hero text. Add multiple portfolio project cards such as logo design, brand identity, poster design, packaging design, social media design, UI/UX design, and advertising campaign mockups. Arrange everything professionally with a modern minimalist style, sharp details, clean typography, elegant composition, and a premium creative agency presentation look. Style: high-end graphic design portfolio, modern creative studio, luxury branding mockup, clean desk setup, realistic shadows, editorial layout, minimalist premium design, professional presentation, 4K, ultra-detailed.