Some more Skyward Sword Zonai AU doodles!
The struggle with Skyloft is that it’s so colorful, yet the Zonai architecture of TOTK is all white marble. But! Stone is a lot more durable than, say, paint and fabrics, so it could be that a lot like Ancient Rome and Greece, Zonai architecture was once incredibly colorful! There is even a little evidence for this in the BOTW exclusive Zonai ruins, as the rock there appears to have red, white, blue, and yellow tinted rocks interspersed with the green.
However, since Skyloft is only an island, its inhabitance would not be able to mine for more Zoanite to make new contraptions. Hence, construct Scrapper not working anymore, the jewelry being made of wood and not zoanite, and the slow decline of the island over time necessitating the return to the surface.
