concrete bathroom with an amazing mirror - Sommer auf Syros
like the pocket doors- glass doors maybe a good idea from the great room to the 4 season porch to let the most light in. For even more light maybe fixed glass doors/windows on either side.
* Dual shower heads and controls for master bath. Bathroom Spa Bathroom Design, Pictures, Remodel, Decor and Ideas - page 7 (Monte's shower.no door to clean)