It looks amazing!
I think what would be great is if a feature like this had some kind of knock down effect for foot soldiers. That way an elephant could run into units, know them over and deal them damage. The ones who aren't dead will then be able to get back up like the trample effect in Battle For Middle Earth.
Is it possible to integrate knockback and impact effects with units, like being hit by an elephant or struck by a catapult? The Hyrule Conquest mod has this, but it's a fantasy world; do you think it's realistic? (And the units in the mod have animations for being knocked up and falling; if this is implemented, more animations would probably be needed.)
In case you will want it, these two are against Very Hard Aggressive AI, both playing with the Athenians. In the first one I outcompeted the AI on economy early game right at the beginning, then it seems I stopped paying too much attention to it. For the second one I’m only barely outcompeted in the first couple of minutes (I guess took a few seconds to set my dropsites, resources being far from the CC). I’m not using auto-queue anymore, to get used to how apparently most people play.