Hi,
As a reward for attaining a new level, I choose 'gardens' for my capital. It was not given in the end too me (to my dismay).
Also, UI wise, I think it would be good to list the perks a town has?
subsidiary remark: should you not get slightly more HP back if you pass a turn instead of moving for your units? Would introduce an extra choice of tactic (beside being 'logical' I guess).