Woah, I didn't even look at the framing. It looks like someone actually cut the ends of everything square and installed them square.
I don't think the, so called, "carpenters" down here even know what a square is.
The $2,000,000 house we did the HVAC in recently looked like it had been framed by a high school construction education class. Fortunatly the PollySteel exterior walls should keep it from actually falling down in a stiff wind.