This is what we did with our old wooden hot tub from decades ago...we turned in into a goldfish pond and it works just beautifully. Every time we say we are going to pull it out and fill in that part of the deck, we think..."What would our fish do without us? and "What would we do without our fish?" The forested hill behind our house is what you are seeing on the right and on the left is the reflection of an upstairs bedroom and the roof. See the little goldfish popping up his head? He survived the winter along with the rest of his family :-) That always makes Bud and me very happy.
This is the correct orientation of the way I shot the picture. It looks like an upside down thicket of trees, the blue sky above, and what looks like some peculiar color of orange.
When I rotated the picture, then is looks like this, The trees appear more upright but the fish still look like fleeting orange. The yellow you see are the roots of one of the plants.