The church had within it artists. If the Apostles wished to have statues of themselves erected, they could easily have had it done.The Apostles were fishermen, not artists.
Suits, because they match what society is wearing, just like how the Apostles dressed. There is no record of, for example, Peter or Paul wearing priest's robes. They were men of the people and did not dress to draw attention to themselves.They all were observant Jews, and they worshiped in the Temple which did have engravings, some of which were cherubim, even engravings of high priest garments, palms and other things symbolizing holiness. Priestly robes dated back to early Judaism, and were also symbolic of holiness. Later, when styles changed from robes to pants, clergy elected to refrain from the newfangled, modern clothing and remain with the traditional robes.
What say you: Which is more Biblical, ministers in a suit and tie or priests in robes?
Do you maintain that the temple had carvings of people who were to be venerated?