I just thought I'd better try to explain what my plan was/is - and see if you can understand it any better than my family did!
I had it all visualised in my head as the finished product, so my vague pointing and sweeping hand movements across the plot matched my equally vague sweeping statements about "the top pond'll go there, the stream'll come out here then meander down round there to a waterfall into the bottom pond around there-ish. The path will come in that way, but you can come in over there too if it's wet.....and they'll meet there, go past the island over the top bridge and up to the tea house."
Simple. Don't see why they didn't get it!
My basic plan had 2 ponds connected by a stream. Waterfall out of one, down the (yet to be built and properly graded) slope to drop over a waterfall to the bottom pond. An 'island' of several (as yet to be found) large rocks, bounded on one side by the stream and the other side by the path. Two bridges (material of which had yet to be identified) top and bottom of the island would allow the paths to traverse the stream and access the gates and tea house.
The tea house plan included treatment space, a wood burning stove, a couple of small windows and a little veranda (hold the thought of 'little' for future reference!) sticking out of the pond to allow for possible dangling of feet into cool, clear pond.
The photo is one sent to me by a friend as her interpretation of what I'd described!!!