Here's an idea for Devs/modders: As a faction gains points in affinities, I think that the models for improvements, not just the model of cities, should change as you gain points in an affinity. What sense does it make to have Supremacy but still have your farms, ect., still look like what it did pre-affinity? Maybe once you surpass x level in an affinity, it should change to that design? It would look better. Just a thought.