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.
10 Ingenious Staircase Railing Ideas To Spruce Up Your House Design - metal pipe stair rail
Nail art hammered into wood rustic
This is a great tutorial for making floor to ceiling shutters. It's in Dutch, but I had not trouble understanding the translation.