A nose that was shortened during surgery shows just a bit more nostril in the after picture.  On the tip of her nose, the white dots that represent the reflections of the flashes are positioned higher above her nostrils in the after photo than in the before.

The wide hump shows up in the before picture as two white flash return marks in the middle of the dorsum.  When the hump was smoothed out, the after picture's dorsum doesn't have a protrusion or irregularity to catch the light, so those white marks are gone.