Retouch

[Raeanne Dimick]

To touch again, or rework, in order to improve; to
revise; as, to retouch a picture or an essay.

[PussyCat]

What [preppy girls] and [scene boys] do to their facebook [pictures] to make themselves look more attractive.

[Lanell]

to make small changes to a picture, photograph, etc., especially in order to improve it:

[Oralee]

Improve or repair (a painting, a photograph, makeup, etc.) by making slight additions or alterations.