It has been some time, but I never found a good enlightenment age base for resource protection. I found that keeping resources low help tremendous, Plus, there are some medal ranges that were better than others. Keeping a redoubt near resource buildings could help shred through pesky raiders. You have the right idea in distributing resource buildings, but you still have plenty more unused walls to form even more defensive compartments. Keeping them in a line on the bottom is a bit of a waste... Also, I don't understand why there are all those idle defensive buildings on the far right? They could be incorporated into your defense. You also have 12 idle villagers. Villager work time is the most precious commodity in this game.