Cazin is associated with the Tonalist movement. He preferred muted palettes and soft light over the bright colours of the Impressionists. Works like Midnight and The Route Nationale at Samer demonstrate his focus on atmosphere and memory. He frequently painted the dunes and coastlines of northern France, though he also produced focused studies like Head of a Woman. His compositions are often sparse, featuring a single cottage or a lonely path. He chose to paint quiet moments of transition between day and night.

Modern collectors value Cazin for the calm and stillness found in his work. His paintings provide a sense of quietude for a room without demanding attention. The neutral tones and simple subjects make his prints compatible with contemporary interior design. Prints such as The Boatyard or Cottage offer a window into a slower, more deliberate way of seeing. His ability to capture the grey light of the French coast remains effective for those seeking a peaceful aesthetic.