I like how you used plates for the roof, which allows for the non-Lego standard slope angles.
Clearly the advantage of not making roofs from sloped bricks is you don’t have that staircase edge effect. Plates are probably more cost effective too. My concern would be whether they stay on during a show.
On another note: AFOL’s don’t paint bricks unless they can do such a good job that no one else can tell the difference. The LUG in eastern PA can make any clear parts into transparent yellow quite convincingly!