here I've shown where the parts go, they're intentionally backwards so it's easier to identify. Notice the etched bottoms that are going by the floor.
Make sure to put the door in while you're setting the wall into place, if you forget the door it's very hard to get in later!
Here you can see how the door works, the square pegs just sit in the round holes so they can be turned.
Assembled it should look like this. Don't glue the roof into place, so you can move models around inside!
Take the angled sections and the short sections and put glue them and sandwich them together. You can assemble these wood out or paint out at your preference. I prefer wood out to give it the unpainted wood feel.
You'll see here the angled section is sloped down at the front, with the longer piece to the outside of the wall. You'll see later why it's arranged this way.
A dab of glue in both holes, if you use too much you can use a paper towel to remove excess.
Glue is placed at the bottom of the thicker piece. Like the posts you can do paint showing or not showing at your preference.
You can see here the thick section sticks up on the top, hard to tell from the picture but have the two bottom edges flush with one another.
Glue the cross-brace in place with thinner section to the front (so the angled roof can clear). I recommend you let this dry before adding the awning itself as it can be unstable before it's dry.