It's expressed in muted tones—the person hasn't made up their mind, so they're neutral. The dark corridor expresses the unknown. The enormous walls of the buildings press down on the small man. The slanted horizon and twisting lines signify instability.
An assignment from the university required us to depict feelings using colors, without resorting to faces or anything like that. We don't get assignments like that very often, so I decided to give it my all.