"Generate an image mockup featuring an indigo blue Gildan 2000 t-shirt positioned flat on the white beige hardwood floor, serving as a pristine canvas. Place a pair of clean men's running shoes on the left side and a belt on the right side of the t-shirt. Ensure that there is no writing or text visible in the image. Pay close attention to the arrangement to create a visually appealing composition, where the t-shirt, shoes, and belt harmonize to showcase the simplicity and elegance of the blank t-shirt and make sure no writing on the tags of the shirts whatsoever.