"The Critic", Norman Rockwell, 1955
The young art student is studying a painting that is studying him—an “unstill life,” if you will. Except for the frowning Dutch masters in the other painting, it is all in the family. The art critic studying a locket in the painting is Jerry Rockwell, the oldest son of the artist. The whimsical lady in the painting is his mother, Mary (Rockwell added flaming red hair for fun). Should the student notice the painting looking back at him or look over his shoulder to see the Dutch gents glaring at him, I suspect he would run screaming from the museum and take up another subject to study.