Here is a progress picture of what I did today. There are a couple of things I would change if I were starting over. The purple and orange polkadots would change places with the dark purple building beside them. The purple would look more like a shadow and the windows would show up better on the dots. There will be more in the gray area to the left and more at the bottom. I think the black and white sqares will look fine when the center is a bit bigger.