Looks pretty good... I don't know enough about trees to spot a misplaced species (maybe if you click and search about them), but remember to remove the camels  

Yeah, I'd try mixing the Persia and Aegean terrains to achieve your desired effect. 

Oh, I though it was a bug, there being no capture, and a very low damage amount. I guess it is helpful to fully read the stats, not just part 

How is that not useful? its 0 pop, and cost 60 total resourecs   Its not a champion though.... from what I have read about them, they were former slaves who were city "police" type units.  So they are 0 pop (but lmitied) they have increased vision.  They are more for patrolling and helping you notice any threats.  

So, I noticed the Athenian Champion Archer that you train from the cc isn't very useful (I assume a bug)