First of all, you can make some changes in the ceiling design, the ceiling can be designed into multiple small units, regular irregularity can be, if then installed a retro chandelier, the effect will be better. Walls are generally some trinkets and photos and so on, this look is a personal preference. Ground, you can use tiles, or stone parquet. Can also be in the corridor on the wall, do a row of glass door ceiling, this can not be too high, the internal plywood to be more, the mezzanine can be put some souvenirs or collectibles and so on.