German shepherd detective portrait photograph

One German shepherd subject wearing a dark fedora and a brown trench coat, depicted as a single figure that fills the central area and upper two-thirds of a 2:3 vertical frame with the head in the upper-center and the shoulders and chest occupying center-lower space. The dog holds a handwritten letter with both front paws on the lower-center plane, a second unfolded sheet lies on the table bottom-left third, and generous negative space remains in the left third and upper background. Render as portrait-photography with three-quarter view and eye-level perspective, maintaining the original close-medium crop and tight framing inside the 2:3 ratio. Use low-key, directional side lighting from camera-left to create soft rim highlights on ear edges and warm amber reflections in the eyes while leaving the right side of the face in deep shadow. Textures include short dense German shepherd fur with visible guard-hair sheen, matte fabric of the felt fedora with a faint band sheen, and slightly worn cotton weave on the trench coat. The wooden table surface shows old scratches and muted specular highlights where the paper catches light, and the handwritten letter has warm cream paper with cursive ink and slight edge curl. Background is deep charcoal with soft bokeh and minimal detail occupying the upper third to preserve noir atmosphere and separate subject from scene. Keep overall color bias toward deep charcoal and warm browns, preserving subtle paper cream accents and muted slate grays in metal or background objects.