As a student of Jean-Louis-Ernest Meissonier, Detaille adopted a style defined by exactitude. He focused on the material reality of the French army. His paintings function as visual records of uniforms and weaponry. In works like Spahi, he captures the specific textures of cloth and the anatomy of the horse. He avoided the chaotic blur of Romantic battle scenes. Instead, he chose a clear and descriptive method that documented the daily life of the cavalry.

Modern collectors value Detaille for his precision and historical clarity. His work offers a window into nineteenth-century military culture without the sentimentality of his contemporaries. The focus on individual figures and their gear makes his prints suitable for structured and traditional interiors. His ability to balance technical accuracy with a sense of presence ensures his art remains relevant for those interested in history and equine subjects.