I found the photos! So I can continue.
The 4 tallest piers along the southern edge of the building site are finished last. They're built up with 3 courses of block (6 blocks total, each course laid perpindicular to the last), then infilled with hand-mixed concrete. I made a lot of concrete in the wheelbarrow - typically 3 full batches per pier. Good thing it wasn't all that hot - it's definitely a workout.
Here I'm working on the last pier:
When the piers are finished, I wet them down with water to prepare for the surface bonded cement, which will be stuccoed on to the block. The fiberglass-reinforced stucco will give the piers tremendous lateral stability:
Here the first pier is done: