Photorealistic specter in a dim basement

Photorealistic rendering of a specter drifting through a damp, concrete basement. The ghost is semi-transparent with a pale, bluish glow and wispy, unfinished edges. It hovers near cracked walls, exposed pipes, and a puddle on a dirty concrete floor. Cobwebs in the corners, rusty tools on a workbench, and faint mold add texture. A single flickering fluorescent light overhead casts harsh blue-green light and long, eerie shadows; dust motes float in the air. The composition is cinematic, with a low-angle view or eye-level, shallow depth of field, and film grain for realism. Color palette in desaturated blues, grays, and greens. The atmosphere is eerie and contemplative rather than violent.