Capture a high-resolution, 4K photograph of an urban backpack inspired by the iconic art style of Jean-Michel Basquiat, set against a pristine white background. The design showcases vibrant colors and intricate textures, reminiscent of Basquiat's abstract street art, with detailed graffiti patterns and expressive brushstrokes. The composition should highlight the backpack’s texture and craftsmanship, conveying an urban, artistic vibe.