A Box to Reflect Upon

My oldest son and daughter-in-law moved into a home that needed a little TLC. I would describe their decorating style as modern/retro---the clean, straight lines of modern, mixed with the funky retro look. The home is a split level. Their living room and kitchen are on the main level and there is a large opening between the two areas. In the living room area there is only one wall that can be decorated. Because of the open floor plan this wall can be seen from the kitchen as well. (Have I thoroughly confused you yet?)
Last year, while they were on vacation, we did a surprise make-over on the majority of the house. I designed, and we built this shelf unit for the wall in the living room. It hangs above the sofa. I purchase an inexpensive door mirror and removed it from the plastic frame. Then we built a box to the dimensions of the mirror. We secured the box to the wall using wall anchors, and then placed the mirror inside using double-sided tape. The mirror reflects the objects inside as well as reflecting light back into the room.