Often when the room size is suitable I prefer to use a PAX wardrobe style of closet in the master bedroom. The benefit of this system is it does not need paint, there are many affordable accessories that can be added, such as drawers and movable shelves. This allows for a very tailored design for the client, and is modular so that many more custom touches can be added later on after the house is sold.
Many drawers can be added at any location inside the wardrobe
This room is just the right size for three wide wardrobes, plus the window sits just above the top of the boxes.