That's a challenging roof to cover with current thatching options. I think you did a great job with what you've got available though. Building is solid design, should be "easy" to update.
As you mentioned, hopefully the Hearth and Home update adds both basic building blocks along with whatever they must have planned to dedicate an entire update to. I love that the first major planned update is going to focus on builds.
I really like how the center beams cross together at the very top to make a chimney!
