In several scenes (in the hunt scene when she rolls her eyes,, during her argument with Simba when he tells her she can't leave Priderock, when she and Kovu nuzzle at the top of the cliff after Zira's death) Kiara's nose changes shape from a 'Pridelander' nose (like Simba and Nala's) to an 'Outsider' nose (like Kovu and Zira's) I think the animators got a bit lazy colouring her nose.