Sleek White Beverage Cartons with Straw and Flap Details

Generate a hyper-realistic image of two sleek, white, rectangular beverage cartons standing upright on a minimalist, monochromatic grey surface, with one carton featuring a straw protruding from its top and the other having a folded flap on its upper right corner, against a plain grey background that subtly gradates to accentuate the soft shadows cast by the cartons, emphasizing their clean lines, matte finish, and precise geometric forms, with the straw and flap details rendered in sharp relief to convey a sense of modern packaging design and eco-friendly product identity, all elements bathed in soft, diffused lighting that highlights the cartons textures and creates a nuanced interplay of light and shadow.