Earlier I showed a mockup of a lattice structure for behind the bog area. Something to grow vines on and bring the whole thing together. Unfortunately, I didn't get pictures in progress, but I bought a bunch more cedar fence pickets and ripped them to 3/4" sticks. I kept some in the 2.5" size I cut before. I decided a criss-cross pattern was kind of boring, so I went with a different idea. Below is the back side in nearly complete state.
In the bottom right of the above picture is the jig I used to get even spacing. It's just two scrap pieces nailed at 90 degrees to one another. I used it as shown below. It would sit neatly between two sticks while I nail the next one in place.
Here is the final result, viewed from the front
And here it is in place: