Prompt
A real photograph in the daguerreotype process genre, captured on a long 120mm lens at f/8 with deep still focus and exceptionally fine grain over a faint mirror-like silver lustre, a single soft window key from front left easing into luminous grey midtones and settling into cool reflective shadow, finished in a delicate silvery monochrome with crisp micro detail. A stag beetle in a wide frame: a large male stag beetle with branched mandibles resting on a flat slate slab, its glossy elytra and jointed legs rendered in silver grey, a small fern leaf and a pinch of soil beside it, a plain mirror dark ground.
Light: a single soft window key from front left, luminous grey midtones across the glossy elytra, cool reflective shadow in the joints and under the mandibles, faint mirror silver lustre over the plate; palette of silver, grey and cool black; antique, exact, still.
Wide 16:9 frame. One small creature shown naturally, anatomically plausible with correct leg and wing counts, no people, no text, no logos, no cartoon faces unless the style itself calls for them.