Using the uploaded product photo, generate a high-resolution mockup with these exact specifications: [LIGHTING]: Harsh, professional Macro Ring-Flash from the camera axis. Every crinkle and fold in the bag is sharply highlighted. [SHADOW]: A uniform, dark halo shadow follows the silhouette of the bag perfectly on the background. [BACKGROUND]: Seamless, clean white cyclorama. [PRODUCT INTEGRITY]: STRICTLY PRESERVE original bag surface and crinkles.