Преобразование амбара в офисное помещение

Office space that includes a spacious desk located at the corner against floor to ceiling windows. Couch situated in the middle of the space with a perfect view of the TV and the landscape. Work table and counter is situated on the opposite wall. There is a desk space next to the work counter.  Back wall can be used for hanging art.
The space next to the desk can be used for shelves, they can have doors or be open. 
Include shades for south wall if the sun in winter makes it hard to use the desk, can keep the other window without shade for view of the landscape.