Photos added.

personally, I would go with the inside mounted top down bottom up again, this time in Bamboo for texture and tone

Thanks, Lyn. Can you recommend a brand?

I don't know if you need privacy, but grass shades, especially finer types of material, are not particularly private if the room is brightly lit and it is dark outside. It gives you the illusion of being solid on the brightly lit side, but you can see a lot through them on the outside.

I lived in an apartment across the alley from someone who would put down the bamboo blind, turn the lights on, and walk back and forth naked in and out of that room and nothing was left to the imagination. Thank goodness it was their dining room and not their bedroom.

They do make lined bamboo/grass shades.

Yes, although we live in a rural area we still need privacy. I did read that bamboo shades do have an option of being lined.
Has anyone used cafe style shutters as a bathroom application? Or wood blinds?

I would use cafe shutters. That way you could have the bottom fully closed and either not have a top tier or have the top tier kept mostly open

Or cafe curtains. They can be done in a chic way that would go with your style. But woven shades would look nice too. We have them in several rooms, and the lined ones offer total privacy.

Blinds.com