Our culture is in a climate where choices of everything can become overwhelming.  How many choices of beer, or soft drinks or ice cream or chips or yogurt etc.  The media overloads us so that we are almost blind and deaf.  It almost takes shock appeal to wake us up.  Visually that is what Over The Top implies- so extreme, funny, noticeable, edgy, without sensor, that you can't walk by without giving it some attention- even if only for a biref moment. So it goes for art and architecture, clothes, shoes,tattoes, jewelry, fashion,photos, and anything else in our consumer culture that wants  you to pay attention, notice or just look!