The triangles on top are very Nepal, they are called “Namaste” and I think a god is placed inside the half dome.
These two “namastes” took about 4 full days to make using ferro-cement ( iron rods inside) and cement plaster using all bamboo scaffolding which is really safe as it bends and all cross bamboo members are tied by coconut rope which tightens in the rain.
I watered all the top floor each day after plastering, for a week! so it cures well and no cracking. Next job is to make brick wall around top floor so the two namastes will then be blended more in.