(Above....the first section of the wall, on the right. It gently curves along the driveway, up to where the driveway splits in two.)
Got the wall built right up to where the Secret Garden ended and the driveway made a 90° turn toward the house. The end is at the double tree trunks. The crooked tree limb laying on the ground in front of the wall will be used for the next road signpost. This spot just begs for some yard art!
Here's a better photo showing the 90° turn. With a bunch of suitable rocks on hand, it almost seemed a shame not to continue the wall. We've been at this task for months, so it seemed natural to continue.