The lines on this unit are pretty thin to be custom. It's probably done by a very handyhomeowner, using a shelving system and/or bookcases from a big box store. Good job, neat and efficient and room for the rad!
10. Add some heat. If you have a large closet that you get dressed in then it wouldn't hurt to add a radiator or space heater to the closet area. A fan is another option for changing up your closets.