An ancient bronze bird sculpture rests atop a decaying estate attic

Atmospheric illustration in the style of classic Soviet book graphics. Close-up: an ancient bronze sculpture of a bird (eagle or golden eagle) sitting on the attic of a dilapidated noble estate. The bird looks mysterious and ominous, covered in patina of time. In its eyes or beak — a hidden mechanism or cache. Background: gloomy sky, silhouettes of trees. Color palette: cold bronze, green and gray shades. Style: realism with elements of engraving.