I wanted to showcase the ambiguity of the word CIAO by illustrating a character using the word right in the umbral of a door that separates an interior space from an outdoor space. You never know if the characther is saying HI! or GOODBYE! and neither to whom character he is talking to, the one inside of the house or the one in the street, since both of them are greeting him at the same time. The use of different colors for inside and outside emphasizes the contrast between spaces and the principal character is right in the middle of both spaces and therefore represented with both colors.