Photorealistic Sprite Inside a Steam Engine

A photorealistic image of a tiny, ethereal sprite with delicate translucent wings and a soft blue-green glow, perched inside the crankcase of a vintage steam locomotive. The sprite wears a weathered leather vest and brass goggles, with a small brass tool belt. Surrounded by gleaming pistons, copper piping, riveted steel plates, and pressure gauges, all dusted with oil and soot. Warm amber locomotive lantern light filters through smoky air, casting dramatic chiaroscuro as wisps of steam curl around metal surfaces. Realistic textures include brushed steel, tarnished brass, worn leather, and wet condensation. A shallow depth of field keeps the sprite in sharp focus while engine components recede slightly into the background, blending photorealism with fantasy in a steampunk mood.