This project attempts to implement your requirements, which is to create a new and more functional closet space. The design is simple but elegant. It includes everything you mentioned you need to have such as hanging rods for short and long items, drawers, adjustable shoe shelves and a lot more open shelving for extra storage for clothes and bigger items. As far as color goes, I decided to go with the classic white, which makes the small space appears bigger and at the same time gives a modern look to the space.
I hope you like my design!