Winter landscape with a river running through the woods.

A river running through winter woodland creates a subject of exceptional atmospheric density: the dark, moving water cutting through the snow-covered forest floor, its course marked by the characteristic vegetation of riparian margins, the bare canopy overhead reflected in the stream's surface. The combination of woodland enclosure and the directional movement of the river—leading the eye into depth—gave Agersnap a compositionally rich subject that combined several of his most frequent motifs in a single, resonant winter composition. Rivers in winter woodland were a subject with deep resonance in Dutch, German, and Scandinavian painting traditions.

The river provides a strong compositional axis leading into depth, while the surrounding woodland creates an enclosing frame. Agersnap uses the contrast between dark moving water and pale snow on the forest floor to create the composition's primary tonal dynamic, with bare trees adding structural complexity above.