I don't think there's anything you could do to improve upon this structure! It shows some young adults hanging around it but I bet it was made for grown ups. I've always loved hexagonal homes, or any unique shape for that matter. They are so much more interesting that rectangular homes.
I wonder what something like this would cost to make yourself? Or if it's a pre-fab home of some kind. I bet it wouldn't be much, honestly. Although, that wood working is impressive. I bet that's the majority of the cost right there.