Facade

I like the contrast of the kids' wall painting and the cement/gravel factory at the background. The factory evokes a sense of seriousness, coldness, and dullness. On the other hand, the painting evokes cheerfulness, playfulness, color, and warmth.

UPDATED: The Title used to be Night and Day. I've now changed it to a more appropriate title, Facade, as suggested by my good friend, Ponch. According to him: "you think it's happy but behind the child-likeness exterior, it's hiding a gloomy (cement-like) interior..."