What models do you use as your Southron?
The scarlet uniforms and pointed helmets are terrific looking.
They are all kit-bashed. The heavy Haradrim infantry with spear and shield are Frostgrave Byzantine infantry . I cut the strange, presumably Byzantine, leg guards into greaves and used round shields with a green stuff spike.
The Easterlings have the bodies of Victrix WoC , I liked the Triarri style chain mail as it looks markedly different to the full shirt of most Dark Ages mail. The helmets are Victrix Warriors of Carthage Liby-Phoenician style. The heads are from various sources , the axes are scratch built from brass wire and green stuff