Try moving your attention around the frame in the opposite direction from the way you first looked. Ask how the picture might read if the subject occupied more of the frame or had more space around them.

A portrait image with a person as its subject
An image from the collection
A portrait from the image collection
A still image from the featured gallery
A portrait from the photo gallery
A study from the portrait series
A portrait included in the image series
A portrait in the featured selection