[The interior designer will most likely be able to help you with that: Jennifer Robin Interiors in Mill Valley.[(https://www.houzz.com/discussions/may-i-inquire-as-to-the-dimensions-of-this-entire-space-thanks-dsvw-vd~3906916)

What is the material on the ceiling?

That's white oak with an elaborate process involving several coats of stain and clear coat.

Where are the drapes and hardware from?

The interior designer will most likely be able to help you with that: Jennifer Robin Interiors in Mill Valley. (https://www.houzz.com/discussions/may-i-inquire-as-to-the-dimensions-of-this-entire-space-thanks-dsvw-vd~3906916)