Now, contrary to the drawings they provided us, it looks like this lower wall is stepped down on the right. By which I mean, obviously it looks stepped down NOW, but it appears that they’ve stopped doing anything with the lower wall. It was shown on the drawings as a straight-across wall. Behind the wall has been filled in and flattened, apparently in preparation for tomorrow’s work, the second (higher) wall.
The wall is not curved, as it appears from the stitched photo, but it does appear to slope up as you go from left to right. That is because our lawn is not level; the lawn slopes down to the right, so the wall (though level) appears to slope up.