You keep churning them out
Anyway, you definitely need some more roads to connect the other pockets of houses. And a reason for the houses being there, especially the group of houses to the north. They are very close to the town center, yet far enough to make me wonder why they are there.
It being a mining town, wouldn't it need a small docks for barges? Not sure what the technology level here is, but if it's medieval, water transport would be the most efficient.
Where are the mines located anyway? Close to town?
And as you were talking about the old west... I have this cliche in my head of towns situated in the desert or badlands. It kinda clashes with the green look