Looks great. They seem to have really stepped it up from the previous installments.
Only thing it's missing is some ambient voices. It's particularly noticeable at the end when everybody just routs without a single word being said. Would be great to hear a couple of shouts like "Retreat, men, retreat!" and "Fall back, fall back!" This could be extended to many different situations in battles, such as when the main gate is breached, when units are ordered to move to places, etc.
They should definitely look to Total War and how it handles ambient voices like that. Doesn't have to be over the top, but just enough to add a layer of realism and atmosphere in battles.