The top two shots are from Sioux Center Iowa, the third and fourth is from Thompson North Dakota, and the bottom from Grand Forks ND.
Again, these are JPEG thumbnails without any cropping or adjustments. Essentially they look rather poor next to the final products.
One of the things that I have been reconsidering, is the amount of foreground. My instructor is not as keen on the shots where the implied horizon bisects the image, but it seems to cause an interesting effect that I have not yet teased out in visual understanding. Many of the New Topographers do use this generally discouraged manner of shooting but for their work and purpose it was/is necessary. I've not decided or come to a conclusion about it for my own work.