Large stones block the wheels of a Ghanaian bus as a man loads it with sacks from a pushcart. In the background, a cluster of homes denotes a hamlet on the outskirts of Accra. Andy Isong works in a palette of blues and yellows to depict a traditional trotro, a bus that carries both merchandise and passengers. Painted across the front of the bus, its name expresses the driver's philosophy — No Hurry in Life.