Upgrading the homes is not a priority right now, did some spring cleaning and got rid of some manufacturies, got a lot of population and some culture back. Got the population in order, now to focus on the culture. I like your layout, would have used the butchers deli instead of the monster fountain, just for the 40 more culture points, but, to each his own. Expansion is #2 on my list behind culture. Stopped fighting battles until I can build up enough of whatever these creatures are that you build in the barracks. 300k+ is a lot to scout also.