If you prefer the look of a Roman shade, hang that from the ceiling. Pull the shade down just enough to cover the top of the window. This will elongate the look of your window and draw the eye up.
Another way to enhance the function of the doors in your bedroom is to replace them with light-filtering or reflective materials. A frosted glass pocket door can make a small room feel less closed in. Similarly, a mirrored closet door could make the room feel larger.
White reflects maximum light, making any space look bright and welcoming. Even the tiniest, most claustrophobia-inducing rooms will seem more spacious with white walls, ceiling and bedding.
Consider replacing ordinary door hardware with more stylish options. Handles and knobs in Lucite, modern brushed brass or polished chrome could give the room an updated feel. For a more cohesive, intentional look, coordinate your door hardware with your drawer pulls.