Colour keys are a series of illustrations that are used to establish the mood, lighting, and composition of a film or other visual media. Colour keys are often used in animation and film work, as they allow the team to define the overall look and feel of the final product. In this case, the colour keys were commissioned for a short film Engrish and were used to establish the mood, lighting, and composition of three main scenes in the film.
In the process of creating a piece of art or visual media, it is often helpful to use 3D software to plan out compositions and camera angles. This can be particularly useful when working with complex or dynamic scenes, as it allows the artist to easily experiment with different compositions and see how they will look from various perspectives. In this case, rough 3D layouts were created in Maya, a 3D graphics software, for two of the panels in the artwork. The 3D layouts were used to help plan the composition and focal length of the camera for these panels.