The materials need serious work. Mostly they are far too big, which makes the buildings look like little models. The ground material for the streets is not appropriate; when would you ever have random patches of grass all over every street and courtyard? Streets would most likely be paved, and if not, they would be mostly stony and any grass would be in defined areas, not random throughout. The lowest picture looks very strange. Are those trails of blood all over the floor? That's what it looks like. The upper stone texture looks like no building I've ever seen. Sorry to be negative unlike all the people above, but if you are going to be commercial, you need to have the unvarnished truth even if it's unflattering.