What consitutes a "perfectly shot film" as opposed to, say, an "incredibly shot film"?

DVC, I rented Masculin féminin and Vivre sa vie on the same day, and watched them in immediate succession. Since I don't own them (yet), I was unable to revisit them when I recently re-explored Godard's work. All I remember, of both films, is liking them very very much. My database entry for Vivre sa vie reads:

"As the opening title explains, this is a film told in twelve scenes; every shot, in its rejection of basic cinematic rules, constantly reminds the viewer who is behind the camera, and the narrative dances along with building momentum until the Monogram B Picture finale."