Photorealistic brownie in a prison cell

A photorealistic image of a fudgy chocolate brownie resting on a small metal cafeteria tray inside a dim prison cell. The brownie has a glossy, crackled top and moist crumb visible at the cut edges. The tray sits on a worn steel table; surrounding cell walls are cold gray concrete with a narrow barred window. Behind the bars, a soft fluorescent light filters in, casting long, dramatic shadows. Details include a chipped enamel plate, a dented mug, and a bunk bed in the background. Emphasize realistic textures: shiny glaze, crumbly edges, salt flecks, dust motes in the air. Use desaturated blues and grays for the environment with the warm brown brownie creating contrast. Composition: three-quarter view, shallow depth of field focusing on the brownie with bars softly blurred in the foreground.