The unwrapping!
I am pretty sure I was too stiff on virtually all of the mortar (maybe all of it as it doesn’t really look like much of it got through the rocks).
Lots of rocks came off:
Here are the walls:
So what do people think? Fixable? Or should I start over?
I am leaning toward starting over. I should check this out where it is supposed to go to see how it looks, etc. That may determine whether I need to redo it just because the size is wrong.
[edited for a typo]