Photorealistic Specter in a Castle Courtyard

Photorealistic render of a translucent specter hovering in a medieval castle courtyard at dusk. Damp gray limestone walls with moss and ivy cling to the stone, crenellations overhead, arched doorways, and a worn stone fountain at the center. A light mist swirls over rain-slick cobblestones, illuminated by torches and moonlight that cast long, eerie shadows. The specter glows pale blue-white, wearing a flowing, tattered robe that dissolves into wisps of light; its face is faint and ethereal with hollow eyes. Realistic textures: wet stones, reflective water, dew on ivy, and rough stone surfaces. Foreground in sharp focus with the specter; background softly blurred to create depth. Cinematic composition, ultra-detailed 8K realism, subtle color grading toward blues and grays, slight lens bloom around the specter for a spectral aura. Distant wrought-iron gate, gargoyles peering from corners, and banners fluttering in a cold breeze to enhance atmosphere.