Fern Frond Spiral in Tiled Stair Hall

Bright winter sunlight streams through a north-facing window, cutting sharp shafts across a tiled stair hall near Porto. A young fern frond uncoils in a tight, geometric spiral, its delicate green veins contrasting against the cool grey and white tiles of the floor. Dust particles float visibly within the light beams, suspended in the still air. The composition relies on reflections from the polished stone surface, creating a mirrored effect that doubles the spiral's form. Hard shadows define the curve of the frond, while the surrounding architecture remains rigid and structured. The final image resolves at the edge where the green tip meets the grey tile line.