room is approx 2.4m x 1.5m. It is windowless, painted in pale grey almost white and has a cavity sliding door. Tiny vanity approx 46cm wide. Black floor boards and same black boards will go up the wall to the ceiling behind toilet . Gold pendant light, matt black and gold basin tap ,Round gold mirror will go above vanity. My question is although I have read alot about mirrors and all say basically same thing that mirror should only be same wide as vanity, I want to hang either a 60cm or 80cm diameter mirror. Advise would be appreciated.