I like it. Those chariot murals were New Kingdom Egyptian (in Kush) though, but fabrics don't survive well, and coloured reliefs from Kush are extremely rare (Sudan is in the rain-belt, so it all just melts away after a while), So Egyptian colour references are fair-game in my opinion (can't think of anything better actually).
Those elephant animations in general would be useful for every faction with elephants, by the way...