Photorealistic Assassin in a Moonlit Castle Courtyard

Photorealistic depiction of an assassin crouched and unseen in a crumbling castle courtyard at twilight. A tall figure in a long, hooded black cloak with the face shadowed, gloved hand resting near a gleaming dagger at the belt. The courtyard features weathered stone arches, ivy-clad walls, a mossy fountain, and torches casting warm amber light on wet cobblestones. Mist drifts along the ground as moonlight threads through drifting clouds, creating long, cinematic shadows. Ultra-detailed textures on stone, metal, and fabric, with a tense, silent mood suggesting danger and secrecy in a medieval fortress.