Sky Guy's BAT/ LE thread

Hey, here are some houses I have made. They are Transit Enabled and come in four different sets.
Tell me what you think. Should I do something different?

Each box is a different set.


Another view


Night lights (sorry about it being too dark)


Question: On these diagonals, how do I get this from happening? Thanks


Constructive criticism welcomed. Please help with my question too.

Also, if you want to see some of my LE work, check out my CJ.