The uniform and peacock hair resembles the French soldiers during the Napoleon era. The way Centauri patriots talk about the good old and powerful days sound like a French talking about how Napoleon almost conquered the whole of Europe during the good old days. Any reason why the similarities between Centauris and Napoleonic France?
Here is a picture of Napoleon himself.
Picture of Londo, future Emperor of Centauri Prime. He may not be as good-looking as Napoleon but the hair looks similar. The uniform looks regimental.