Modular Travel Backpack Product Photography Prompt

Generate a high-end commercial product photography image: an unbranded modular travel backpack standing upright on a warm stone platform, with a detachable small bag and folded jacket beside it. The background is graphite wall panels with slight outdoor light and shadow; the backpack uses pine-needle green fabric, orange zipper accents, and clean negative space is kept on the right. Use soft directional daylight, crisp edge highlights, rendering ballistic nylon, matte rubber, metal hardware, stone, and fabric textures. No readable text, logos, watermarks, people, hands, or brand identifiers. 4:3 e-commerce hero image composition.