Interesting concept.
I would have liked to have started with 2 villagers, or an existing house nearby like existing farm cloudling. The early game is quite slow as I am waiting for my single villager to build a house. Either that or the ability to assist the villager to speed up construction.
The ability to fill in gaps would have been nice, or a bonus for connecting to cloudlings that didn't create voids.
Maybe tiered upgrades -the more sides you connect to the better the cloudling? If connecting to a tree or ore containing cloudling some kind of production bonus, leveled up villagers when it is a villager cloudling, or more productive cloudling "soil" or building space if there is nothing on the cloudling. Something like the more sides that connect when joining would give better bonuses, perhaps, to incentivize filling voids, with 3 sides being the best possible join.
I did notice that as I connected more and more cloudlings and the auto zoom happened, it got more difficult to see things. If there is going to be more to interact with a zoom in feature would be beneficial.