The staircase grammars are turning out nicely. Here is a screenshot:
This is taken from the low-resolution model. Please ignore the texturing for now, since it is the same brick texture everywhere. I did not bother yet to apply any materials to the architecture. It is only about the shapes and how they connect to each other.
The columns in the image are part of the staircase, which is in the middle of a large building. I will show more of this later.