Exterior? Exterior, other options include adding trim, painting frames a contrasting color, adding a window box, highlighting the window with plantings, etc. Interior, blinds, shades, panels, or some combination. If you narrow down and include a photo, sit back and prepare to be dazzled by Houzzers coming to your rescue.

the design looks great . According to me one side of windows can be used as bed wall . we can have blackout curtains or blackout window blinds . You can even play with drapery to define the area behind bed. We already have seating in the room so next we can do is give a console/ study table with an puffe / chair to it. also one can add a bench at the end of bed. Size you can check on your Autocad . Bed wall should be the focus when one enters the room, so I feel the bed should be placed like this . Dimensions of furniture and circulation space you can work on. Also WC should be on the washbasin side to avoid Future leakages and dampness in bedroom wall. all the best

Regular window size 4width X 4 height floor to window sill 3' kitchen window size 4 width X 3 height floor to window sill 4' if low sill means stove burner of due to air

Based on brand Manafature and sq.ft cost warranty period change. uPVC compare to wood maintenance free During rainy time wood expand and contract but uPVC nothing effects. uPVC also good sound proof