3 monks took 3 days to build this mandala out of thousands of colored sand grains, ... and the fate of that piece of art is to be dissolved in a ceremony by the lama :
https://fr.wikipedia.org/wiki/Mandala
These beautiful sand castles took also many hours to sculpt, and the artist knew that the sea would finally destroy them, so why bother ?
Well, I see your beta park, which is very nice btw, as a form of ephemeral art, I bet you enjoyed doing it, and showing it. I am pretty sure you learned from it.. just be happy for that. And create again when the game is released, because in the end, the creation process is what matters, right ? (oh yeah... and money, that's a crafting / tycoon game after all haha)
And when you will have achieved another beautiful creation, come share it !