For his magnificent picture of the City Guard, Rembrandt chose the moment when the drums had just been sounded as an order for the men to form into line behind their chief officers' march-forth.

They are coming out from a dark building into the full sunshine of the street.

All in a bustle, some look at their fire-arms, some lift their lances, and some cock their guns.

The sunshine falls full upon the captain and the lieutenant beside him, but the background is so dark that several of the seventeen figures are almost lost to view.

A few of the heads are turned in such a way that only half the face is seen, and no doubt as likenesses some of them were deficient.
Rembrandt was not thinking of the seventeen men individually.