This has been a lesson on, "Save iterations externally!"
I am excited to see the new version, though! From what you've done here, I love the main street. The terrain definitely needs to be improved. The height changes are like mini cliffs, and changes from desert to forest suddenly. Height changes should be slopes, and changing from grass to desert should be smoother. I think the mine train would need to be improved too. It's too short and boring. However you do the new version, I can't wait.