@ Josh . in constant envy, though i appreciate how much work it would take to maintain. the pond to be placed within the greenhouse? the plan to keep the humidity in there for veg etc.? I have never seen that before. what are the plans for the pond? the geodesic i presume to catch as much sun as possible.
with too much time on my hands and in my brains ( carework) experimented with wallpaper and nature shots. (the inside and outside theme)
My basic theory is that plants like water and the sound of running water (I read "The secret Life of Plants" ages ago in the 1970s). Amazingly, when I dug out the patch for the dome, I found an abandoned borehole with water 3m down, so I intend to use it in a circular loop with a little pump. And yes, you've got it, it will help with humidity in Summer though I'll have to do a lot of experimenting because it will get hot too. There are exactly 100 main triangular windows I have to do, and I plan that 20 of them will be opening. I'm planning a mix of poly-carbonate, glass and polytunnel-plastic, all rather experimental.
I don't have any other plans for the pond yet, but as a former mining engineer (I worked for the National Coal Board in the Lancashire & Cannock Chase pits in the 70s & 80s), I'm into digging.