Really cool log bench, I couldn't find a source for the picture but looks like a pretty straight forward project.
Love the mounding with stones in between.
Learn how to build a garden waterfall pond. And to get you started, here are some great designs to get you inspired
wonky wooden steps
sumiya garden by non-euclidean photography
I want a Koi pond in my backyard
man made stream diy - Google Search
could i squeeze a waterfall/pond into our tiny rowhome backyard?
Koi Pond in the Spring Prelude indoor garden
Mixed media paving .... Brick + Gravel + Railway Sleepers