Hey, having a few issues here with lining up a few elements on the tileset.
The dock pillars are favored either to the left or right side. So they only line up with the end of a dock, and not the centered support pillars.
As you can see below, in your mock up, there are pillar heads that line up perfectly with end of dock and middle of dock. But the tileset only has left or right biased pillar heads. And they don't align with centered support pillars.
