Survey the subject from all its viewpoints so that you understand its form. Here, observe that the three inner petals are larger and wider than the three narrow outer ones (sepals). Notice the long central style and the six stamens that circle around it. The head at the end of the style is like a cluster of three beads. The agnel in da Vinci's painting 'The Annunication' is holding a lily stem with buds and blooms. (from Draw Like Da Vinci, p. 53, 2006)