His work focused on the horse and its relationship with the rider. He studied under Léon Cogniet and was influenced by the animal studies of Théodore Géricault. De Dreux avoided the heavy, moralising themes common in mid-nineteenth-century French art. Instead, he concentrated on the physical grace of the animal, using thin layers of paint to create a sense of speed. His compositions frequently featured low horizons that made the horses appear statuesque.

For the modern home, these prints provide a sense of refined movement. The artist used a restrained palette that fits well with neutral interior design. His focus on the natural form of the horse rather than complex historical narratives gives his work a lasting clarity. Collectors appreciate how these images capture an era of European elegance while remaining focused on the beauty of the thoroughbred.