Costume

After watching the short film 'Daddy', the man is wearing plain cloths, grey t-shirt, which matches the plain colour of the room. The daughter in the film is wearing bright colours to contrast the room.
I will use thos contrast of costume but having the alive, younger brother wearing simple grey pyjamas, but have the older, dead brother wearing darker colours, like black trpuises and shirt.
The younger brothers girlfriend will wear a brightly coloured coat, but a darker dress. This will connote the 'light and colour' in the younger brothers distressed life. However once she's insite the narrative will revery back to the dark and sinister.