These guys are of course Arcane Legions figures. The archers and the spearman in the middle are Egyptian Boosters, while the other figures are Egyptian Cavalry. Apart from the sable centaur ("Achilles," apparently), these aren't the original heads, which wore Classical-style crested helmets, like these:
|Photo credit to Men in Boxes.|
|Note the Milliput beard on the "wizard" centaur on the left. Apart from Achilles on the right, that's what all these minis' hair looked like before priming.|
You can see how I was limited by the small number of poses available, but I think the shot at the top of the article shows how the headswaps combined with the variegated paintjobs lend more variety than one might expect.