- Place
- a long index gallery of low catalogue cabinets, rolling ladders and upper cornices
- Affordance
- cabinet and ladder rails create a sequence of natural perches
- Camera
- one-point perspective down the gallery
- Living subject
- an anatomically natural raven
- Day behaviour
- moving along the low catalogue cornice
- Night behaviour
- settled above the closed index cabinets
- Palette
- lapis blue, midnight navy, ivory, cyan glass and restrained gold
- Materials
- lapis and cobalt glass tesserae, ivory stone, black marble and gold leaf smalti