Contemporary signage
In addition to the modern hair and make-up in season 2, I find the contemporary fonts used in the town signs to be very distracting. When the mayor unveiled the water tower with the name of the new town, the first thing I thought was "Oh, that's Lucida Handwriting, a popular font in the late 1990s." All of the signs are perfectly lettered with modern fonts like Copperplate and Circus.
The entire town looks too perfect for a frontier town.