His own heroic style, first seen in the St Mark(1411-12) and his St John Evangelist(1413-15), made his reputation. In both these he created a new kind of humanity, slightly larger than life and exemplifying those qualities of will that were so highly prized in the early renaissance. His St George(1416-c.1420) for Osanmichele the Saint is a portrayal of the Christian hero, but more significantly it is the earliest datable example of perpective being used to create definable space for the figures to occupy.