The Songhai must have
huge biceps, swinging the lance up and down like that in the default.

That's not the way I'd hold a 3 meter (10 feet for you metrically challenged people) stick...
A bit of (creative, hopefully) criticism: I think that the lance would be better off with some anti-aliasing. I don't know how hard that would be to do, neither do I know if it would screw up the rest of the unit, but now it looks a bit pixelated.
Is there a reason as to why the "barding" (is that the right name? the red stuff on the horse, at least...) is that colour? Not complaining, just curious...
I like it.